As more people look for sustainable solutions to reduce plastic waste, compostable trash bags have become a top choice for environmentally conscious households and businesses. But not all bags labeled “green” or “eco-friendly” are created equal. In this comprehensive guide, we’ll walk you through the best compostable trash bags of 2025, what certifications to look for, and how they differ from biodegradable alternatives.
What Are Compostable Trash Bags?
Compostable trash bags are made from natural, plant-based materials such as corn starch, PLA (polylactic acid), and PBAT (polybutylene adipate terephthalate). Unlike traditional plastic garbage bags, these break down into non-toxic components under composting conditions.
Required Standards for Compostable Bags:
- BPI Certified (US): Must pass ASTM D6400 or D6868
- OK Compost (EU): Certifies products for industrial or home composting
- EN13432: A European standard for compostability
These eco trash bags are ideal for people who want to reduce their carbon footprint and keep organic waste out of landfills.
Reducing plastic use is crucial. Compostable garbage bags offer a sustainable alternative, breaking down into natural elements without leaving harmful residues. By choosing compostable options, we can decrease plastic pollution and protect the environment.
Best Compostable Trash Bags for Home
Finding the right compostable garbage bag depends on your specific needs. Here are some top recommendations:
Best Small Compostable Biodegradable Garbage Bags with Handles
Managing small waste bins can be challenging without the right bags. A durable, compostable bag with handles makes disposal easier and more eco-friendly.
The BioBag 3-Gallon Compostable Bags are ideal for small bins. Measuring 16.3″ x 22.0″ x 0.67 mil, each roll contains 100 bags with convenient handle straps. They are BPI-certified and suitable for home composting.
These bags are made from
plant-based materials, ensuring they break down efficiently in composting environments
. The handles provide easy tying and carrying, making waste disposal hassle-free. Their size is perfect for bathroom or office bins, reducing plastic use in every room.
Best Compostable Garbage Bags for Home (100% Biodegradable)
For those seeking fully biodegradable options, it’s essential to choose bags that meet strict composting standards.
UNNI 100% Compostable Bags are a top choice. They are BPI-certified and meet ASTM D6400 standards, ensuring complete biodegradation in composting facilities. Available in various sizes, they cater to different household needs.
Compostable Garbage Bags for Home (100% Biodegradable)
These bags are made from plant starches and contain no polyethylene, making them an eco-friendly alternative to traditional plastic bags. Their durability ensures they hold up during use, and their biodegradability means they won’t linger in the environment.
Cheapest Compostable Trash Bags (3 Gallons)
Budget-friendly options are available for those looking to make an eco-friendly switch without breaking the bank.
Primode 3-Gallon Compostable Bags offer affordability without compromising quality. They are BPI-certified and suitable for home composting, providing an economical choice for small waste bins.
These bags are made from plant-based materials and are designed to decompose efficiently in composting environments. Their cost-effectiveness makes them accessible for households looking to reduce their plastic footprint.
Eco-Friendly Compostable Trash Bags (13 Gallon Compostable Garbage Bags)
Kitchen waste requires sturdy bags that can handle heavier loads without tearing.
For Good Tall Kitchen Bags are an excellent choice. Made from PLA and PBAT, they are 1.1 mil thick, providing durability and leak resistance. They are also Lomi-friendly, breaking down efficiently in composting environments.
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These bags feature a drawstring closure for easy tying and carrying. Their strength ensures they can handle kitchen waste without issues, making them a reliable option for daily use.
Best Large Compostable Garbage Bags (for Use in Larger Commercial and Residential Dumpsters Larger than 50L)
Managing waste in larger bins requires bags that can handle substantial volumes without compromising on eco-friendliness.
UNNI 55-Gallon Compostable Large Bags are designed for such needs. Made from cornstarch and PLA, they are BPI-certified and meet ASTM D6400 standards, ensuring complete biodegradation.
These bags are 0.85 mil thick, providing durability for heavy loads. Their large capacity makes them suitable for commercial and residential dumpsters, offering an eco-friendly solution for substantial waste management.
Best Compostable Yard Waste Bags (36 Gallons, 53.1″ Long, 35.4″ Wide, 22.6″ Diameter)
Yard waste disposal can be cumbersome without the right bags. A large, durable compostable bag simplifies the process.
Lawn & Leaf Bags are ideal for yard waste. Measuring 33 gallons, they are made from plant-based materials and are BPI-certified, ensuring they break down efficiently in composting environments.
These bags are designed to handle grass clippings, leaves, and other yard debris without tearing.
How to Choose the Right Compostable Trash Bag
1. Size Compatibility:
- Match the bag size with your bin (e.g., 3 gal for countertop bins, 13 gal for kitchen bins, 33 gal for yard waste).
2. Certification:
- Ensure the bag has valid certifications like BPI, ASTM D6400, EN13432, or OK Compost.
3. Thickness & Strength:
- Look for bags labeled “leak-proof” or “tear-resistant.” Compostable bags are generally thinner than plastic ones, so durability matters.
4. Use Case:
- Compostable liners work great for food waste, but not all are ideal for wet or heavy waste. Choose based on your needs.
5. Price per Bag:
- Compare unit pricing. Buying in bulk or wholesale compostable bags often saves money.
Where to Buy Compostable Trash Bags
Online Retailers:
- Amazon
- Grove Collaborative
- Eco-friendly eCommerce stores
Physical Stores:
- Whole Foods
- Target
- Zero-waste or refill shops
Wholesale / B2B:
- Alibaba (for bulk orders)
- Compostable bag manufacturers (e.g., Orizon Biomaterials)
Tips for Using Compostable Trash Bags Correctly
- Store in a cool, dry place. Heat and humidity can break down materials prematurely.
- Use within 12–18 months. These bags have a shelf life.
- Don’t overfill. They may tear if overstretched.
- Do not put in regular trash bins. Compostable bags should go to composting facilities or in your backyard compost if they are “home compostable.”
Compostable vs. Biodegradable Trash Bags: What’s the Difference?
| Feature | Compostable | Biodegradable |
|---|---|---|
| Breaks down into | Water, CO2, biomass | Microplastics or biomass |
| Timeframe | 90–180 days | Varies (months to years) |
| Certification | ASTM D6400, EN13432 | Often unregulated |
| Safe for composting | Yes | Not always |
Biodegradable trash bags may degrade eventually, but not all are suitable for composting. They often require industrial conditions or leave microplastics behind.
Compostable garbage bags are the better option if you want an eco-friendly, zero-waste lifestyle.
The Correct Disposal Method of Compostable Trash Bags
Proper disposal of compostable trash bags is crucial to ensure they break down as intended and provide environmental benefits.
1. Home Composting
If the bag is certified for home composting (e.g., TÜV Austria OK Compost Home), you can add it to your backyard compost bin. Ensure the compost pile maintains appropriate moisture, aeration, and temperature to facilitate decomposition.
2. Industrial Composting Facilities
For bags certified for industrial composting (e.g., ASTM D6400, BPI Certification), dispose of them through municipal composting programs or facilities that accept compostable plastics. Check with your local waste management services to confirm acceptance.
3. Avoid Landfills and Recycling Bins
Do not dispose of compostable bags in regular trash destined for landfills or in recycling bins. Landfills lack the conditions necessary for compostable bags to break down properly, and they are not suitable for recycling streams.
4. Community Composting Programs
If home composting isn’t an option and local industrial composting facilities are unavailable, consider participating in community composting programs or drop-off sites that accept compostable materials.
By selecting certified compostable trash bags and disposing of them correctly, you contribute to reducing plastic waste and promoting sustainable waste management practices.
Conclusion
Switching to certified compostable trash bags is one of the easiest and most impactful steps you can take toward reducing plastic pollution. Whether you need compostable bin liners for your kitchen, office, or garden, the options in 2025 are more reliable and affordable than ever.
By choosing plant-based garbage bags with trusted certifications, you’re supporting a cleaner, more sustainable future.
