AIThis post was created with the assistance of artificial intelligence (AI).

Choosing the right compostable trash bags involves balancing eco-friendliness with durability and cost. The best overall pick, UNNI Compostable Bags, offers a sturdy 0.9 mil thickness, making it reliable for everyday use. For smaller waste needs, SUPERBIO’s 1.6-gallon bags provide a compact, eco-conscious option, while the Simply Bio heavy-duty bags stand out for their extra thick 1 mil build. Buyers often face tradeoffs between thickness, price, and composting compatibility. Keep reading for a detailed breakdown of these top choices and what makes each one unique.

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13
compared
7
brands
13 gallons
max capacity
Which compostable trash bag should you buy?
★ Top Pick
UNNI Compostable Bags
Best Overall for Heavy-Duty Kitchen Waste
Extra thick (0.9 mil) for maximum durability
See on Amazon →
Small households or offices with limited waste capacity and a focus on eco-friendly disposal
UNNI 2.6 Gallon Compostable Ba
Eco-friendly, certified compostable material
View on Amazon →
Households or small businesses needing a durable, leak-resistant compostable bag for heavy waste or commercial use
Simply Bio 13 Gallon Compostab
Heavy-duty, leak-resistant 1 mil thickness
View on Amazon →
Home or office users with small waste bins looking for odorless, eco-friendly options
Compostable Trash Bags
Eco-friendly, fully compostable material
View on Amazon →
Households or outdoor spaces needing durable, eco-friendly waste bags with strong leak resistance
13 Gallon Compostable Trash Ba
Thickened, durable design with leak resistance
View on Amazon →
Capacity — compared
UNNI Compostable Bags13 gallons
UNNI 2.6 Gallon Compostable Ba2.6 gallons
Simply Bio 13 Gallon Compostab13 gallons (49.2 liters)
Compostable Trash Bags13 gallons
13 Gallon Compostable Trash Ba13 gallons
SUPERBIO 1.6 Gallon Compostabl1.6 gallons
UNNI 3 Gallon Compost Bags for3 gallons
ANECO 100% Compostable Waste B2.6 gallons
Compostic Compostable Trash Ba13 gallons
UNNI 2.6 Gallon Compostable Ba2.6 gallons
13 Gallon Compostable Trash Ba13 gallons
Compostic Compostable 13 Gallo13 gallons
13 Gallon Compostable Trash Ba13 gallons
Pros & cons at a glance
UNNI Compostable Bags
✓ Extra thick (0.9 mil) for maximum durability
✗ May not decompose efficiently in home compost setups
UNNI 2.6 Gallon Compostable Ba
✓ Eco-friendly, certified compostable material
✗ Limited to compostable waste only
Simply Bio 13 Gallon Compostab
✓ Heavy-duty, leak-resistant 1 mil thickness
✗ Thicker bags may be less flexible
Compostable Trash Bags
✓ Eco-friendly, fully compostable material
✗ Limited to small bin sizes
13 Gallon Compostable Trash Ba
✓ Thickened, durable design with leak resistance
✗ May not fit larger trash cans
SUPERBIO 1.6 Gallon Compostabl
✓ Made from biodegradable, plant-based bioplastic
✗ Limited shelf life of approximately 1 year
UNNI 3 Gallon Compost Bags for
✓ Extra thick (0.71 mil) for enhanced durability
✗ Designed specifically for 3-gallon bins, limiting versatility
ANECO 100% Compostable Waste B
✓ Made from fully compostable plant-based materials
✗ Limited to 2.6-gallon capacity, not for larger trash
Compostic Compostable Trash Ba
✓ Extra strong and tear-resistant for heavy waste
✗ May be thicker and less flexible than traditional plastic bags
UNNI 2.6 Gallon Compostable Ba
✓ Made from plant-based, compostable materials
✗ Limited to small kitchen bin use
13 Gallon Compostable Trash Ba
✓ Leak-resistant and thick for heavy, wet loads
✗ Less stretch than traditional plastic bags, may tear when removing full
Compostic Compostable 13 Gallo
✓ Extra tear-resistant for household waste
✗ Decomposition time varies with compost conditions
13 Gallon Compostable Trash Ba
✓ Heavy-duty, tear-resistant design
✗ Shelf life of about 1 year, requires prompt disposal

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Key Takeaways

  • Thicker bags generally offer better tear resistance but tend to be more expensive and slightly less eco-friendly.
  • Size variety matters; smaller bags are perfect for kitchen counters, while larger options suit outdoor or full-house waste.
  • The most eco-friendly bags often balance compostability with sufficient durability—heavy-duty options are not always the most compostable.
  • Price point varies significantly; bulk packs tend to offer better value for frequent use, but quality can differ.
  • Additional features like drawstrings or leakproof design can enhance usability but may affect compostability and cost.
2
UNNI 2.6 Gallon Compostable Ba
Best for Small Waste Bins and Bulk Buying
1
UNNI Compostable Bags
Best Overall for Heavy-Duty Kitchen Waste
3
Simply Bio 13 Gallon Compostab
Best Heavy-Duty Compostable Bag with Drawstring

Our Top Compostable Trash Bags Picks

UNNI Compostable Bags, 13 Gallon, 50 Count, Extra Thick 0.9 MilUNNI Compostable Bags, 13 Gallon, 50 Count, Extra Thick 0.9 MilBest Overall for Heavy-Duty Kitchen WasteCapacity: 13 gallonsUnit Count: 50Item Weight: 2.6 poundsVIEW ON AMAZONSee Our Full Breakdown
UNNI 2.6 Gallon Compostable Bags, 200 Count, 10 Liter, Extra Thick 0.71 MilUNNI 2.6 Gallon Compostable Bags, 200 Count, 10 Liter, Extra Thick 0.71 MilBest for Small Waste Bins and Bulk BuyingCapacity: 2.6 gallonsUnit Count: 200Material: CompostableVIEW ON AMAZONSee Our Full Breakdown
Simply Bio 13 Gallon Compostable Organic Bags Liners Drawstring, Heavy Duty Extra Thick 1 Mil, 49.2 Liter, 30 BagsSimply Bio 13 Gallon Compostable Organic Bags Liners Drawstring, Heavy Duty Extra Thick 1 Mil, 49.2 Liter, 30 BagsBest Heavy-Duty Compostable Bag with DrawstringCapacity: 13 gallons (49.2 liters)Bag Count: 30Material: Plant-based PLA and PBATVIEW ON AMAZONSee Our Full Breakdown
Compostable Trash Bags – 13 Gallon, 80 Count, Unscented, GreenCompostable Trash Bags - 13 Gallon, 80 Count, Unscented, GreenBest for Versatile Small Bin UseSize: 24.8 x 31.4 inchesCapacity: 13 gallonsCount: 80VIEW ON AMAZONSee Our Full Breakdown
13 Gallon Compostable Trash Bags – 100 Count13 Gallon Compostable Trash Bags - 100 CountBest for Outdoor and Multi-Use EnvironmentsCapacity: 13 gallonsCount: 100Material: Plant starch (corn) materialVIEW ON AMAZONSee Our Full Breakdown
SUPERBIO 1.6 Gallon Compostable Food Scrap Bags for Countertop BinSUPERBIO 1.6 Gallon Compostable Food Scrap Bags for Countertop BinBest for Small Countertop Bins and Organic WasteCapacity: 1.6 gallonsUnit Count: 50 bagsItem Weight: 13.1 ouncesVIEW ON AMAZONSee Our Full Breakdown
UNNI 3 Gallon Compost Bags for Countertop Bin, 100 CT, Extra Thick 0.71 MilUNNI 3 Gallon Compost Bags for Countertop Bin, 100 CT, Extra Thick 0.71 MilBest for Durability in Small Kitchen CompostingCapacity: 3 gallonsUnit Count: 100Item Dimensions: 4.76 x 4.65 x 4.61 inchesVIEW ON AMAZONSee Our Full Breakdown
ANECO 100% Compostable Waste Bags 2.6 Gallon (110 Pack)ANECO 100% Compostable Waste Bags 2.6 Gallon (110 Pack)Best for Versatile Outdoor and Kitchen UseQuantity: 110 bagsSize: 16.5 x 16.3 inchesCapacity: 2.6 gallonsVIEW ON AMAZONSee Our Full Breakdown
Compostic Compostable Trash Bags, 13 Gallon Tall Kitchen, 50 CountCompostic Compostable Trash Bags, 13 Gallon Tall Kitchen, 50 CountBest for Heavy-Duty Kitchen Waste in Larger BinsSize: 23 x 28 inchesCapacity: 13 gallonsCount: 50VIEW ON AMAZONSee Our Full Breakdown
UNNI 2.6 Gallon Compostable Bags, 100 Count, 0.71 MilUNNI 2.6 Gallon Compostable Bags, 100 Count, 0.71 MilBest for Small Kitchen Bins with DurabilityCapacity: 2.6 gallonsUnit Count: 100Item Dimensions: 4.6 x 4.13 x 4.06 inchesVIEW ON AMAZONSee Our Full Breakdown
13 Gallon Compostable Trash Bags (40 Count) – Leakproof, Thick, Tall Kitchen Garbage Bags with Handles13 Gallon Compostable Trash Bags (40 Count) - Leakproof, Thick, Tall Kitchen Garbage Bags with HandlesBest Overall for Tall Kitchen WasteCapacity: 13 gallonsQuantity: 40 bagsThickness: 1.1 mil (27 µm)VIEW ON AMAZONSee Our Full Breakdown
Compostic Compostable 13 Gallon Trash Bags, 100 Ct, Extra StrongCompostic Compostable 13 Gallon Trash Bags, 100 Ct, Extra StrongBest Value for Heavy Household WasteCapacity: 13 gallonsQuantity: 100 countDimensions: 23 x 28 inchesVIEW ON AMAZONSee Our Full Breakdown
13 Gallon Compostable Trash Bags Drawstring, Heavy Duty Extra Thick 1 Mil, 35 Bags13 Gallon Compostable Trash Bags Drawstring, Heavy Duty Extra Thick 1 Mil, 35 BagsBest for Commercial or Heavy Kitchen UseCapacity: 13 gallonsMaterial: Biodegradable plasticThickness: 1 milVIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
compostable trash bagCapacityMaterialThickness
UNNI Compostable Bags13 gallons
UNNI 2.6 Gallon Compostable Ba2.6 gallonsCompostable0.71 mil
Simply Bio 13 Gallon Compostab13 gallons (49.2 liters)Plant-based PLA and PBAT1 mil
Compostable Trash Bags13 gallonsPlant starch (biomaterial)
13 Gallon Compostable Trash Ba13 gallonsPlant starch (corn) material
SUPERBIO 1.6 Gallon Compostabl1.6 gallonsPlant-based bioplastic
UNNI 3 Gallon Compost Bags for3 gallonsPlant-based, compostable0.71 mil
ANECO 100% Compostable Waste B2.6 gallonsPlant-based, corn starchVariable (implied extra thick)
Compostic Compostable Trash Ba13 gallonsPlant-based biopolymers
UNNI 2.6 Gallon Compostable Ba2.6 gallonsCompostable0.71 mil
13 Gallon Compostable Trash Ba13 gallonsPlant-based, compostable film1.1 mil (27 µm)
Compostic Compostable 13 Gallo13 gallonsPlant-based biopolymers
13 Gallon Compostable Trash Ba13 gallonsBiodegradable plastic1 mil

More Details on Our Top Picks

  1. UNNI Compostable Bags, 13 Gallon, 50 Count, Extra Thick 0.9 Mil

    UNNI Compostable Bags, 13 Gallon, 50 Count, Extra Thick 0.9 Mil

    Best Overall for Heavy-Duty Kitchen Waste

    View on Amazon

    This option stands out for its extra thickness (0.9 mil), which offers superior durability compared to thinner bags like the UNNI 2.6 Gallon Compostable Bags. Its plant-based, certified compostable material makes it suitable for those prioritizing environmental impact, especially in homes with frequent food scraps. The larger capacity fits standard tall kitchen cans, making it a versatile choice. However, its thickness means it’s less flexible and may be more prone to tearing if not handled carefully. It’s best suited for households with access to commercial composting facilities, as home composting might not break down these thicker bags efficiently. Still, the durability makes it a reliable pick for daily kitchen waste management.

    Pros:
    • Extra thick (0.9 mil) for maximum durability
    • Made from plant-based, certified compostable materials
    • Fits standard tall kitchen cans
    • Unscented, reducing odor issues
    Cons:
    • May not decompose efficiently in home compost setups
    • Less flexible due to thickness, increasing risk of tearing

    Best for: Homeowners who want robust, reliable compostable bags for frequent kitchen waste, especially where composting services are available

    Not ideal for: Small apartment dwellers with limited space or those relying solely on home composting without commercial options

    • Capacity:13 gallons
    • Unit Count:50
    • Item Weight:2.6 pounds
    • Item Dimensions:6.42 x 4.41 x 4.41 inches
    • Material Features:Compostable
    • Material Type:compostable
    Our verdict
    “A strong choice for those needing durable, compostable bags for frequent, heavy kitchen waste in areas with commercial composting options.”
  2. UNNI 2.6 Gallon Compostable Bags, 200 Count, 10 Liter, Extra Thick 0.71 Mil

    UNNI 2.6 Gallon Compostable Bags, 200 Count, 10 Liter, Extra Thick 0.71 Mil

    Best for Small Waste Bins and Bulk Buying

    View on Amazon

    Compared with larger capacity options, the UNNI 2.6 Gallon Compostable Bags excel in compact spaces, making them ideal for small kitchen or bathroom waste. Their 0.71 mil thickness offers good durability while maintaining flexibility, which is a step down from the more rugged UNNI 13 Gallon Bags but still suitable for daily waste. The large pack size makes them economical and convenient for bulk storage, though they are limited to compostable waste only. This makes them less suitable for households that generate non-compostable trash or need larger capacity bags. If your waste is primarily food scraps and small trash, these strike a good balance between eco-friendliness and practicality.

    Pros:
    • Eco-friendly, certified compostable material
    • Extra thick (0.71 mil) for durability
    • Large pack size offers good value
    • Flexible and easy to handle
    Cons:
    • Limited to compostable waste only
    • Not suitable for larger waste volumes

    Best for: Small households or offices with limited waste capacity and a focus on eco-friendly disposal

    Not ideal for: Homes with larger trash cans or mixed waste streams that include non-compostables

    • Capacity:2.6 gallons
    • Unit Count:200
    • Material:Compostable
    • Thickness:0.71 mil
    • Dimensions:9 x 5 x 5 inches
    • Weight:3.5 pounds
    Our verdict
    “An excellent choice for small waste bins and households seeking bulk eco-friendly bags for daily food scraps.”
  3. Simply Bio 13 Gallon Compostable Organic Bags Liners Drawstring, Heavy Duty Extra Thick 1 Mil, 49.2 Liter, 30 Bags

    Simply Bio 13 Gallon Compostable Organic Bags Liners Drawstring, Heavy Duty Extra Thick 1 Mil, 49.2 Liter, 30 Bags

    Best Heavy-Duty Compostable Bag with Drawstring

    View on Amazon

    This bag earns its spot for its 1 mil thickness, making it one of the most durable compostable bags in this roundup, especially compared to the Compostable Trash Bags – 13 Gallon, 80 Count. Its drawstring design simplifies closing and lifting, which is a practical feature for everyday use. Made from plant-based PLA and PBAT, it balances eco-consciousness with strength, suitable for both kitchen scraps and commercial waste. The thicker material, however, reduces flexibility, which could make placement trickier in tight bins. It’s best for users who prioritize durability over compactness, particularly in environments where bag strength is critical. For lighter waste, a thinner bag might suffice, but this model excels under heavier load conditions.

    Pros:
    • Heavy-duty, leak-resistant 1 mil thickness
    • Includes drawstring for easy closure
    • Made from plant-based PLA and PBAT
    • Suitable for various waste types
    Cons:
    • Thicker bags may be less flexible
    • Limited to 30 bags per roll

    Best for: Households or small businesses needing a durable, leak-resistant compostable bag for heavy waste or commercial use

    Not ideal for: Individuals seeking flexible, lightweight bags for infrequent or light waste

    • Capacity:13 gallons (49.2 liters)
    • Bag Count:30
    • Material:Plant-based PLA and PBAT
    • Thickness:1 mil
    • Dimensions:Width 23.7 in., Height 29.4 in.
    Our verdict
    “Ideal for users who need a tough, reliable compostable bag for heavier or commercial waste loads.”
  4. Compostable Trash Bags – 13 Gallon, 80 Count, Unscented, Green

    Compostable Trash Bags - 13 Gallon, 80 Count, Unscented, Green

    Best for Versatile Small Bin Use

    View on Amazon

    Compared to larger capacity options like the 13 Gallon Compostable Trash Bags – 100 Count, this set focuses on smaller, versatile bags suitable for various settings. Made from plant starch material, these bags are fully certified compostable and odorless, making them friendly for home or office environments. Their octagonal bottom design enhances strength and leak resistance, but their size limits them to small waste bins, not heavy-duty or outdoor use. They are a practical choice for those who want environmentally friendly bags that fit smaller containers without sacrificing durability. However, users with larger trash needs will find these insufficient, and they may require specific composting conditions to fully realize their eco benefits.

    Pros:
    • Eco-friendly, fully compostable material
    • Leak-proof with octagonal bottom design
    • Odorless and suitable for sensitive environments
    • Versatile for multiple small waste bins
    Cons:
    • Limited to small bin sizes
    • Not suitable for outdoor or large waste volumes

    Best for: Home or office users with small waste bins looking for odorless, eco-friendly options

    Not ideal for: Users with large trash cans or high-volume waste streams requiring bigger bags

    • Size:24.8 x 31.4 inches
    • Capacity:13 gallons
    • Count:80
    • Material:Plant starch (biomaterial)
    • Certifications:ASTM D6400, EN 13432
    Our verdict
    “A solid choice for small-scale waste disposal in eco-conscious homes or offices, but not for heavy or large-volume trash.”
  5. 13 Gallon Compostable Trash Bags – 100 Count

    13 Gallon Compostable Trash Bags - 100 Count

    Best for Outdoor and Multi-Use Environments

    View on Amazon

    This set offers a thickened, 13-gallon capacity bag made from plant starch (corn), with a focus on durability and outdoor resilience. Their double drawstring design makes tying and lifting easy, and the 100 count provides good value for larger households or outdoor settings. While the UNNI 13 Gallon Bags are more economical in bulk, these bags emphasize leak resistance and environmental certifications like BPI and OK COMPOST, which may appeal to consumers highly committed to eco standards. Their size may not fit larger or extra-wide trash cans, and the higher cost could deter budget-conscious buyers. They suit outdoor use or situations requiring sturdy, leak-proof bags, but might be overkill for light indoor waste.

    Pros:
    • Thickened, durable design with leak resistance
    • Double drawstring for easy tying
    • Made from plant starch (corn)
    • Certified by BPI, OK COMPOST, Seedling
    Cons:
    • May not fit larger trash cans
    • Potentially higher cost compared to thinner options

    Best for: Households or outdoor spaces needing durable, eco-friendly waste bags with strong leak resistance

    Not ideal for: Small indoor waste bins or users seeking low-cost, lightweight options for infrequent use

    • Capacity:13 gallons
    • Count:100
    • Material:Plant starch (corn) material
    • Dimensions:24 inches x 30 inches
    • Material Features:Compostable
    Our verdict
    “Best suited for outdoor or high-resistance waste needs where durability and eco-certifications matter most.”
  6. SUPERBIO 1.6 Gallon Compostable Food Scrap Bags for Countertop Bin

    SUPERBIO 1.6 Gallon Compostable Food Scrap Bags for Countertop Bin

    Best for Small Countertop Bins and Organic Waste

    View on Amazon

    This option stands out for its plant-based bioplastic construction, making it a strong choice for eco-conscious consumers who want a reliable compostable bag for small food scraps. Its handle ties and reinforced bottom enhance usability, especially compared to lighter options like UNNI 2.6 Gallon Bags, which may lack durability. However, the limited shelf life of about one year and the need to dispose of organic waste within three days mean it’s less suited for long-term storage or larger volumes. The certification by BPI and OK Compost HOME adds confidence in its compostability, but it may not be accepted by all composting facilities, which could be a drawback for some users.

    Pros:
    • Made from biodegradable, plant-based bioplastic
    • Includes handle ties for easy sealing
    • Reinforced bottom for handling heavier loads
    Cons:
    • Limited shelf life of approximately 1 year
    • Disposal within 3 days recommended to prevent odor

    Best for: Homeowners with small countertop compost bins focused on organic food scraps and quick disposal.

    Not ideal for: People needing long-term storage or larger capacity, as these are best suited for 1.6-gallon bins and short-term use.

    • Capacity:1.6 gallons
    • Unit Count:50 bags
    • Item Weight:13.1 ounces
    • Material:Plant-based bioplastic
    • Style:Handle tie
    • Item Dimensions:5 x 3 x 3 inches
    Our verdict
    “This pick is ideal for small-scale, short-term composting of food scraps in a countertop bin, but not for long-term storage or larger loads.”
  7. UNNI 3 Gallon Compost Bags for Countertop Bin, 100 CT, Extra Thick 0.71 Mil

    UNNI 3 Gallon Compost Bags for Countertop Bin, 100 CT, Extra Thick 0.71 Mil

    Best for Durability in Small Kitchen Composting

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    Compared with the SUPERBIO bags, the UNNI 3 Gallon Compost Bags offer a thicker, 0.71 mil construction that provides extra durability for handling daily food scraps without tearing. They fit perfectly into small kitchen compost bins and are made from certified compostable materials, making them suitable for eco-conscious households. The thicker material, however, makes these bags slightly less flexible, which could lead to difficulty in sealing or fitting into tight spaces. While they excel at durability, their design is less suited for long-term storage or outdoor use, and they are optimized for 3-gallon bins only. These bags strike a good balance between strength and compostability, but their specific size limits broader application.

    Pros:
    • Extra thick (0.71 mil) for enhanced durability
    • Made from certified compostable plant-based materials
    • Perfect fit for small 3-gallon compost bins
    Cons:
    • Designed specifically for 3-gallon bins, limiting versatility
    • Use within 9 months for best performance

    Best for: Small household kitchens requiring sturdy, everyday composting bags for 3-gallon bins.

    Not ideal for: Larger waste volumes or outdoor composting, where bigger or more flexible bags are needed.

    • Capacity:3 gallons
    • Unit Count:100
    • Item Dimensions:4.76 x 4.65 x 4.61 inches
    • Material:Plant-based, compostable
    • Thickness:0.71 mil
    • Certifications:BPI, CMA, OK compost HOME
    Our verdict
    “This pick makes the most sense for households that prioritize durability in small compost bins but don’t need larger capacity or outdoor use.”
  8. ANECO 100% Compostable Waste Bags 2.6 Gallon (110 Pack)

    ANECO 100% Compostable Waste Bags 2.6 Gallon (110 Pack)

    Best for Versatile Outdoor and Kitchen Use

    View on Amazon

    This product distinguishes itself by its fully compostable material made from corn starch, meeting strict standards like ASTM D6400 and OK Compost Home. Its 2.6-gallon capacity makes it suitable for small outdoor bins, garden waste, or kitchen scraps, offering a versatile option compared to the smaller SUPERBIO bags. Its extra thickness and leak-proof design mean it handles moist waste well, but this also means it’s slightly heavier and less flexible than thinner bags like UNNI 2.6 Gallon Bags. Decomposition times of 6-12 months are reasonable for outdoor composting, but could be a concern for those expecting quicker breakdown in home compost setups. Overall, this is a strong, multi-purpose compostable bag for eco-minded users seeking durability and compliance to strict standards.

    Pros:
    • Made from fully compostable plant-based materials
    • Extra thick and leak-proof for moist waste
    • Meets strict US and European compostability standards
    Cons:
    • Limited to 2.6-gallon capacity, not for larger trash
    • Decomposition time of 6-12 months may not suit urgent disposal needs

    Best for: Gardeners or outdoor enthusiasts needing durable, versatile compostable bags for multi-use applications.

    Not ideal for: Indoor users with small countertop bins or those seeking rapid composting, as it’s optimized for outdoor conditions and longer decomposition times.

    • Quantity:110 bags
    • Size:16.5 x 16.3 inches
    • Capacity:2.6 gallons
    • Material:Plant-based, corn starch
    • Standards:ASTM D6400, OK Compost Home
    • Thickness:Variable (implied extra thick)
    Our verdict
    “This product suits eco-conscious outdoor users and gardeners who want durable, certified compostable bags for various applications, but may be less ideal for quick indoor composting.”
  9. Compostic Compostable Trash Bags, 13 Gallon Tall Kitchen, 50 Count

    Compostic Compostable Trash Bags, 13 Gallon Tall Kitchen, 50 Count

    Best for Heavy-Duty Kitchen Waste in Larger Bins

    View on Amazon

    Compared to smaller or thinner options, Compostic 13 Gallon Tall Kitchen Bags excel in strength and tear resistance, making them suitable for handling bulky or heavy household waste. Their plant-based biopolymers decompose in home compost within 12 to 24 weeks, offering a clear environmental benefit over traditional plastics. While they are thicker and potentially less flexible than traditional plastic bags, this tradeoff results in better durability during use. These bags are non-toxic, unscented, and come with eco-friendly packaging, appealing to environmentally conscious households. However, their increased thickness may make them slightly more cumbersome to fit into tight bins, and their decomposition time could vary depending on compost conditions, which might be less predictable for some users.

    Pros:
    • Extra strong and tear-resistant for heavy waste
    • Fully biodegradable, decomposes in 12-24 weeks
    • Non-toxic, unscented, environmentally friendly packaging
    Cons:
    • May be thicker and less flexible than traditional plastic bags
    • Decomposition time varies with compost conditions

    Best for: Large families or households with heavy kitchen waste seeking durable, eco-friendly bags for 13-gallon bins.

    Not ideal for: Small households or users who prefer ultra-flexible, lightweight bags for quick disposal, as these are thicker and more rigid.

    • Size:23 x 28 inches
    • Capacity:13 gallons
    • Count:50
    • Material:Plant-based biopolymers
    • Decomposition Time:12-24 weeks
    • Certifications:DIN CERTCO
    Our verdict
    “Ideal for eco-conscious households needing durable, large-capacity compostable bags that can handle heavy waste, with some flexibility tradeoffs.”
  10. UNNI 2.6 Gallon Compostable Bags, 100 Count, 0.71 Mil

    UNNI 2.6 Gallon Compostable Bags, 100 Count, 0.71 Mil

    Best for Small Kitchen Bins with Durability

    View on Amazon

    This set of UNNI bags emphasizes durability with its 0.71 mil thickness, making it a practical choice for daily kitchen waste. Compared to the ANECO bags, they are slightly more flexible and easier to fit into small bins, but still offer the same compostability certification. Their capacity of 2.6 gallons makes them well-suited for compact kitchen setups, though they are limited for larger or outdoor composting needs. The high certification standards and thickness ensure they resist rips and leaks effectively, but their limited size means they are less versatile for bigger trash loads or outdoor use. These bags are best for consumers prioritizing strength and eco-friendliness without needing larger capacities.

    Pros:
    • Made from plant-based, compostable materials
    • Extra thick (0.71 mil) for durability and leak resistance
    • Independently certified for compostability (BPI, CMA, TÜV AUSTRIA)
    Cons:
    • Limited to small kitchen bin use
    • Commercial composting may not be available everywhere

    Best for: Small households or individuals with limited space seeking durable, certified compostable bags for daily kitchen use.

    Not ideal for: Large families or outdoor composting, due to capacity and size constraints.

    • Capacity:2.6 gallons
    • Unit Count:100
    • Item Dimensions:4.6 x 4.13 x 4.06 inches
    • Material:Compostable
    • Thickness:0.71 mil
    • Material Type:Plant-based
    Our verdict
    “This product suits small-scale users who need tough, eco-friendly bags for everyday kitchen waste, but lacks capacity for larger or outdoor applications.”
  11. 13 Gallon Compostable Trash Bags (40 Count) – Leakproof, Thick, Tall Kitchen Garbage Bags with Handles

    13 Gallon Compostable Trash Bags (40 Count) - Leakproof, Thick, Tall Kitchen Garbage Bags with Handles

    Best Overall for Tall Kitchen Waste

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    This set of 13-gallon compostable bags stands out for their combination of durability and eco-friendliness. Their 1.1 mil thickness provides better resistance against leaks and heavy, wet waste compared to thinner options like the UNNI 2.6 Gallon Bags. The reinforced handles make carrying full loads more manageable, especially when compared with the simpler drawstring bags like the one from Compostic. However, their limited stretch can make removal tricky once they’re full, and they aren’t ideal for smaller countertop compost bins. These bags are perfect for households with tall kitchen cans that frequently handle moist food scraps, offering a reliable, eco-friendly alternative to plastic.

    Pros:
    • Leak-resistant and thick for heavy, wet loads
    • Reinforced handles for easy carrying
    • ASTM D6400 and BPI certified compostable material
    Cons:
    • Less stretch than traditional plastic bags, may tear when removing full
    • Not suitable for small or countertop compost pails

    Best for: Homeowners with large, tall kitchen waste cans who want leakproof, eco-friendly liners.

    Not ideal for: Small kitchens with compact countertop compost bins, due to their size and shape.

    • Capacity:13 gallons
    • Quantity:40 bags
    • Thickness:1.1 mil (27 µm)
    • Material:Plant-based, compostable film
    • Certification:ASTM D6400, BPI Certified
    • Dimensions:30″ H x 23.5″ W
    Our verdict
    “This pick is ideal for those who need durable, tall compostable bags for heavy kitchen waste.”
  12. Compostic Compostable 13 Gallon Trash Bags, 100 Ct, Extra Strong

    Compostic Compostable 13 Gallon Trash Bags, 100 Ct, Extra Strong

    Best Value for Heavy Household Waste

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    Compared with the thinner UNNI 13 Gallon Bags, the Compostic extra-strong bags excel in tear resistance, making them suitable for mixed household waste that includes heavier or sharper items. Their plant-based biopolymers decompose within 12 to 24 weeks, offering a quick eco-friendly breakdown, unlike some bags that take longer or leave microplastics. These bags are non-toxic and unscented, making them safe around children and pets. The main tradeoff is their higher cost, which may deter budget-conscious buyers, and their decomposition depends heavily on the composting environment. Overall, they provide a reliable, eco-conscious solution for households seeking strong, fully compostable liners.

    Pros:
    • Extra tear-resistant for household waste
    • Decomposes fully in 12-24 weeks
    • Non-toxic and safe for pets and kids
    Cons:
    • More expensive than basic compostable or plastic bags
    • Decomposition time varies with compost conditions

    Best for: Families seeking high-strength, biodegradable bags compatible with standard 13-gallon bins.

    Not ideal for: Budget shoppers or those with infrequent waste, due to higher price per bag.

    • Capacity:13 gallons
    • Quantity:100 count
    • Dimensions:23 x 28 inches
    • Material:Plant-based biopolymers
    • Decomposition Time:12 to 24 weeks
    Our verdict
    “This option makes the most sense for eco-conscious households needing durable, fast-decomposing bags for regular waste.”
  13. 13 Gallon Compostable Trash Bags Drawstring, Heavy Duty Extra Thick 1 Mil, 35 Bags

    13 Gallon Compostable Trash Bags Drawstring, Heavy Duty Extra Thick 1 Mil, 35 Bags

    Best for Commercial or Heavy Kitchen Use

    View on Amazon

    Unlike the thinner compostable options from UNNI or Compostic, these 1 mil drawstring bags prioritize strength and durability, making them well-suited for commercial composting or kitchens with heavier waste. Their biodegradable composition complies with ASTM D6400 standards, and the drawstring closure adds convenience, especially when dealing with larger or messier loads. The main tradeoff involves their shelf life—about a year—and their potential inapplicability at some local composting facilities that don’t accept thicker biodegradable plastics. These bags are ideal for users needing extra robustness in a compostable format, especially in professional or high-volume settings.

    Pros:
    • Heavy-duty, tear-resistant design
    • Biodegradable and ASTM D6400 certified
    • Convenient drawstring closure
    Cons:
    • Shelf life of about 1 year, requires prompt disposal
    • Compatibility varies with local composting facilities

    Best for: Commercial kitchens or households with heavy, food scrap waste that require durable, drawstring liners.

    Not ideal for: Home users with infrequent waste or those in areas lacking suitable composting facilities, due to shelf life and facility compatibility.

    • Capacity:13 gallons
    • Material:Biodegradable plastic
    • Thickness:1 mil
    • Size:25.2 in x 25.6 in
    • Bags per roll:35
    • Certifications:ASTM D6400, BPI
    Our verdict
    “This product suits high-volume, heavy-duty composting needs where durability and convenience are priorities.”
compostable trash bags
What makes a great compostable trash bag
1
Material and Certification
Choosing bags with reputable compostability certifications ensures that they break down properly in commercial composting faciliti
2
Thickness and Durability
Thicker bags, such as 0.9 mil or 1 mil, tend to resist tears and leaks better, making them suitable for heavier waste or outdoor u
3
Size and Fit
Choosing the correct size ensures a clean fit without excess material that wastes resources.
4
Additional Features and Convenience
Features like drawstrings or leakproof designs improve ease of use, especially when removing and sealing full bags.
How to choose your compostable trash bag
1
How we picked
Products were selected based on a combination of criteria that matter most to eco-conscious buyers: material composition
2
Material and Certification
Choosing bags with reputable compostability certifications ensures that they break down properly in commercial compostin
3
Thickness and Durability
Thicker bags, such as 0.9 mil or 1 mil, tend to resist tears and leaks better, making them suitable for heavier waste or
4
Size and Fit
Choosing the correct size ensures a clean fit without excess material that wastes resources.
5
Additional Features and Convenience
Features like drawstrings or leakproof designs improve ease of use, especially when removing and sealing full bags.
Vetted compostable trash bags ·
The best compostable trash bags, compared
★ Winner UNNI Compostable Bags
Best Overall for Heavy-Duty Kitchen Waste
13compared
13 gallonstop capacity

How We Picked

Products were selected based on a combination of criteria that matter most to eco-conscious buyers: material composition, thickness, size options, user reviews, and overall value. We prioritized bags that are certified compostable and perform reliably in everyday use, balancing durability with compostability standards. The ranking also considers price per bag for value-conscious consumers and features like drawstrings or leakproof qualities for convenience. This approach ensures that each product serves a distinct user need, from basic eco-friendly waste disposal to premium durability, making it easier for readers to find a suitable choice.
Everyday → specialist
Everyday & valuePremium & specialist
Which compostable trash bag fits you?
The everyday user
All-round, reliable
The enthusiast
Premium & high-performance
The gift-giver
Looks & craftsmanship

Factors to Consider When Choosing Compostable Trash Bags

When choosing compostable trash bags, consider several key factors beyond just environmental friendliness. Understanding your specific waste disposal needs helps narrow down the options. Thickness influences durability and tear resistance—thicker bags last longer but may cost more. Size compatibility with your bins ensures a proper fit, preventing messes or waste. Features like drawstrings or leakproof design can boost convenience but may impact compostability or price. Lastly, certifications such as ASTM D6400 or BPI assure that the bags meet recognized compostability standards, giving peace of mind about their environmental claims.

Material and Certification

Choosing bags with reputable compostability certifications ensures that they break down properly in commercial composting facilities. Look for labels like ASTM D6400 or BPI certification, which verify the product’s eco-claims. Keep in mind that some bags labeled ‘biodegradable’ may not meet strict compostability standards, so always check for certified eco-labels. Materials like plant-based PLA or compostable bioplastics are common and generally safe for composting, but their performance can vary depending on thickness and manufacturing quality. Balancing certification and material quality prevents disappointment and reduces environmental impact.

Thickness and Durability

Thicker bags, such as 0.9 mil or 1 mil, tend to resist tears and leaks better, making them suitable for heavier waste or outdoor use. However, increased thickness can sometimes reduce the overall compostability rate slightly and raise costs. Thinner bags, like 0.5 to 0.7 mil, are lighter and often cheaper but may tear more easily, especially with sharp or bulky waste. Think about your typical waste load and environment—if you need a bag for outdoor bins or heavier refuse, prioritize thicker, more durable options.

Size and Fit

Choosing the correct size ensures a clean fit without excess material that wastes resources. Smaller sizes like 1.6 or 2.6 gallons are ideal for countertop or small bin use, while 13-gallon bags suit standard kitchen or outdoor bins. A bag that fits well reduces the risk of spills or tearing and minimizes waste. Some brands offer multiple sizes, which is helpful if you manage different waste streams. Always double-check your bin dimensions to select the most suitable size, preventing unnecessary waste and inconvenience.

Additional Features and Convenience

Features like drawstrings or leakproof designs improve ease of use, especially when removing and sealing full bags. Drawstrings help with secure closure and reduce mess, but they may slightly reduce the eco-friendliness of the bag. Leakproof features are particularly useful for food scraps or moist waste, preventing spills and odors. However, these features often add to the cost and may impact compostability if they involve non-biodegradable components. Weigh the convenience benefits against environmental considerations to find the best balance for your needs.

Cost and Value

Bulk packs typically offer lower per-bag costs, making them appealing for frequent waste disposal. Yet, not all bulk options maintain the same quality—some cheaper packs might tear easily or lack proper certification. Consider your budget and waste volume to choose a pack that offers the best value without sacrificing performance. Sometimes spending a bit more upfront results in fewer replacements and better environmental compliance, especially if durability and certification are prioritized.

Frequently Asked Questions

Are compostable trash bags suitable for all types of waste?

While compostable trash bags are suitable for most organic waste and general trash, they might not be ideal for heavy or sharp waste that tears the bag. They work well for kitchen scraps, paper, and light waste but may struggle with items like glass or metal. Always check the bag’s recommended weight limit and tear resistance to ensure it matches your waste profile. For very heavy or abrasive waste, consider combining compostable bags with other waste management strategies or using thicker, stronger options.

Can I use compostable trash bags in regular trash bins without issue?

Yes, compostable trash bags can be used in standard trash bins, but their environmental benefits are maximized when disposed of in commercial composting facilities. Keep in mind that these bags may not be suitable for landfill conditions, where they might not break down as intended. Also, ensure your local waste management system accepts compostable bags—if they do, using them can significantly reduce plastic waste. If not, consider using biodegradable or traditional plastic bags based on your disposal options.

Do compostable trash bags cost significantly more than regular plastic bags?

Typically, compostable trash bags cost more per unit than conventional plastic bags due to the materials and certification processes involved. However, bulk purchasing can mitigate some of the cost difference. While the initial expense might be higher, many users find the environmental benefits justify the price, especially if they prioritize reducing plastic waste. For those on a tight budget, balancing the number of bags purchased with quality features is key to making eco-friendly choices affordable.

Are all compostable trash bags certified and trustworthy?

Not all bags labeled as ‘compostable’ meet strict environmental standards. Look for reputable certifications like ASTM D6400 or BPI to verify claims. These certifications confirm the bags will break down properly in commercial composting facilities within a certain timeframe. Uncertified or unclear labeling can sometimes be misleading, so prioritizing certified options ensures you’re making environmentally responsible choices that align with your sustainability goals.

How long do compostable trash bags take to break down?

The breakdown time varies depending on the material, thickness, and composting conditions. Certified compostable bags typically decompose within 90 to 180 days in commercial composting settings. Thinner or less durable bags might break down faster, but outdoor or landfill conditions could slow this process significantly. If environmental impact is your priority, choose certified bags and dispose of them properly in suitable composting systems for the fastest, most complete breakdown.

What are the best best compostable trash bags?

The best compostable trash bags are those that combine durability, eco-friendliness, and reliability. The picks above are designed to break down safely in composting environments while handling everyday waste. Look for options made from plant-based materials that meet compostability standards, ensuring they decompose within a reasonable timeframe. These bags are suitable for both indoor and outdoor use, providing a sustainable alternative to traditional plastic bags. When choosing the best compostable trash bags, consider size, thickness, and user reviews to find the most suitable option for your needs.

Conclusion

For everyday use and reliable performance, the UNNI Compostable Bags stand out as the best overall choice, offering a solid balance of durability, eco-friendliness, and affordability. If you’re seeking the best value, consider bulk packs like the UNNI 2.6 Gallon Compostable Bags or ANECO Waste Bags, which offer more for less. For those new to compostable products, the Superbio 1.6 Gallon Bags provide an easy entry point with sufficient performance. Budget-conscious buyers should prioritize certified, thinner options, while eco-conscious consumers looking for durability might opt for the heavier, thicker brands. Ultimately, your choice depends on your specific waste volume, environmental priorities, and budget constraints.

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