10 Best Compostable Bags for Your Kitchen Compost Bin this year
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There’s no single best compostable bag for a kitchen compost bin. The right one comes down to your bin size, how wet your scraps get, and whether your bag goes to a backyard pile or a city program.
1. UNNI 2.6 Gallon Compostable Bags
Best for: someone lining a small caddy every single day.
The 0.71 mil film is the trade-off. The certifications are the real strength here — BPI to ASTM D6400, CMA field-tested, and OK compost HOME by TÜV AUSTRIA, so it’s rated for a backyard pile as well as a commercial facility.
One practical note from the listing: store these somewhere cool and dry, and use them within 9 months. That’s normal for plant-based film.
Good if:
- You keep a small caddy on the counter and empty it every day or two
- You want a bag rated for both home and commercial composting
- You’d rather buy one big roll than reorder often
Skip it if:
- You line a tall 13-gallon kitchen can
- You leave scraps sitting for a week or more before taking them out
2. 2.6 Gallon Compostable Food Scrap Bags by BioBag
Best for: a buyer who wants the BPI certification front and center.
The bags measure 16 by 17 inches at 0.64 mil.
The fit note matters: the listing says they securely line most kitchen composting pails and bins. That’s broad, so measure your caddy before you commit to a 100-count roll.
Good if:
- Certification is the deciding factor for you
- You compost at home or through a program that checks for BPI
- You want minimal packaging with your order
Skip it if:
- You want handles or a drawstring to close the bag
- Your scraps are heavy and wet most days
3. GreFusion 1.2 Gallon Compostable Bags
Best for: a first-time buyer with a tiny countertop bin.
Small bins are the hardest to line, because a bag that’s slightly too big bunches up and one that’s too small slips down. This listing is unusually specific about fit: it covers 0.75, 1, 1.2, 1.3, and 1.6 gallon bins.
You get 125 bags at 15.7 by 15 inches. The bottom is formed as one integral piece to leave no space to leak, and it describes a high-density blend for tear resistance. It’s certified by BPI to ASTM D6400 and EU EN13432, plus OK Compost HOME.
Good if:
- Your countertop bin is under 2 gallons
- You want the listing to tell you the exact bin sizes it fits
- You’d use the extras for a bathroom can or dog bags
Skip it if:
- You have a standard tall kitchen can
- You want one bag to last a full week
4. SUPERBIO 2.6 Gallon Compostable Bags with Handles
Best for: someone who wants to tie the bag shut and carry it out.
Handles sound like a small detail until you’ve carried a dripping caddy liner across a kitchen. This listing gives you a handle tie plus a star-sealed reinforced bottom. At 16.3 by 22 inches and 0.67 mil, the extra length is what the handles need.
The certification line is where you should read carefully. These are BPI certified as commercially compostable only, and OK compost INDUSTRIAL with SEEDLING from TÜV, meeting ASTM D6400 and EN 13432. So this is a bag for a city collection program or a commercial facility, not a home compost pile.
Good if:
- You carry scraps out to a curb bin or drop-off site
- You want handles instead of knotting the top
- Your bin gets emptied every couple of days
Skip it if:
- You compost in your own backyard and need a home-rated bag
- You leave food waste sitting for more than a few days
5. UNNI 13 Gallon Compostable Bags
Best for: a household lining a tall kitchen can every week.
A 13-gallon can holds a lot of weight for days. So thickness and a true fit are what you’re paying attention to. This roll gives you 50 bags at 23.75 by 31.49 inches with a 0.9 mil film.
The certification set: BPI to ASTM D6400, CMA field-tested, and OK compost HOME by TÜV AUSTRIA.
The trade-off is count.
Good if:
- You line a tall kitchen compost or trash can
- You want a home-compostable rating at this size
- You’d rather have a thicker film than a higher count
Skip it if:
- Your bin is a small countertop caddy
- You want a 100-count roll to last the year
6. 1.6 Gallon Tie Handle Compost
Best for: someone who wants a secure seal on a countertop caddy.
You get 120 bags per roll, which is the highest count in this list, and the packaging is a simple paper band instead of a box or plastic wrap. Certification is BPI compostable to ASTM D6400, and the listing says the bags are designed for commercial composting environments — so a backyard pile isn’t the stated use here.
Good if:
- You want handles to seal and carry a caddy liner
- You change your countertop bin liner often
- You prefer minimal packaging
Skip it if:
- You compost in your own backyard
- You need a size built for a tall kitchen can
7. Compastic 13 Gallon Trash Bags
Best for: someone composting at home who wants the bag to break down there.
Home composting is a different standard from commercial, and this listing is built around it. The brand says these decompose fully in a home compost within 12 to 24 weeks, and they’re certified home compostable by DIN CERTCO. The bags are 23 by 28 inches for standard tall kitchen bins, made from plant-based biopolymers, and the listing states they’re BPA-free, GMO-free, and unscented.
Good if:
- You run your own backyard compost pile
- You want an unscented, fragrance-free liner
- You care about the packaging being compostable too
Skip it if:
- Your city program names a certification this bag doesn’t carry
- You want a large count in one order
8. Simply Bio 13 Gallon Compostable Organic Bags Liners Drawstring
Best for: someone who wants the thickest film and a drawstring.
Drawstrings are rare in compostable bags, and this listing pairs one with a 1 mil film. The bags are 23.7 by 29.4 inches at 49.2 litres, 30 to a roll, and resist punctures and leaks.
The certification set is broad: BPI certified, OK compost HOME and OK compost INDUSTRIAL by TÜV AUSTRIA, and Seedling certified with DIN CERTCO, meeting ASTM D6400 and EU EN 13432. The material is plant-based PLA and PBAT, breaking down into humus, CO2, and water.
Good if:
- You want a drawstring closure on a bag for a tall kitchen can
- Film thickness matters more to you than count
- You want both home and industrial certification
Skip it if:
- You want a big roll that lasts months
- Your bin is a small countertop caddy
9. Healthy Earth 2.6 Gallon Compostable Trash Bags
Best for: someone who wants a thicker small bag for daily kitchen use.
This listing states a 20-micron film, roughly 0.8 mil, which the brand describes as thicker than leading brands to resist leaks and tears.
The size is 8.3 by 16.1 inches, cut for countertop caddies, small trash cans, and countertop bins. You get 100 bags. Certification is BPI and TÜV Austria OK Compost HOME to ASTM D6400 and EN 13432, so it’s rated for home composting.
Good if:
- You want a thicker film in a small size
- Your caddy takes a narrower liner
- Home composting certification matters to you
Skip it if:
- Your bin opening is wider than this bag’s cut
- You want tie handles or a drawstring
10. AIRNEX Small Compost Bags 1.6 Gal
Best for: someone who hates leaks and double-bagging.
Wet food waste is where thin liners fail, and this listing addresses it head-on. The film is 0.18 mm, and the brand says it stays elastic against heavy loads and resists tears from sharp scraps.
You get 50 bags at 1.6 gallons, and the box doubles as a dispenser. Certification is OK Compost Home and Seedling, made from cornstarch, with the listing stating the bag leaves no trace in 6 to 12 months.
Good if:
- You’ve had thin compostable bags split on you before
- You want a stated load capacity
- You use a small countertop bin
Skip it if:
- You need a bag for a tall kitchen can
- You want a 100-count roll
Also Worth Considering
(Include 10 Bonus Bags) ANECO 100% Compostable Waste Bags 2.6 Gallon — a compostable bag for a countertop caddy that ships with 10 bonus bags included.
Gallon Compost Bags Kitchen — a 1.3-gallon compostable bag in a 50-count pack.
SUPERBIO Compostable Food Scrap Bags — the 1.6-gallon version of the SUPERBIO line. Same brand as the handled countertop bags above, in a smaller size for a compact caddy.
Where These Overlap
The two UNNI rolls are the closest pair here. BioBag and Healthy Earth land close too: both are countertop-caddy bags with home-compostable certification, and the deciding factor is film thickness and the cut of the bag. The genuinely different ones are the handled and drawstring bags. SUPERBIO, Generation earth, Simply Bio, and Compastic each solve a carrying or closing problem the plain liners don’t address at all.
Still Not Sure?
How do I know which gallon size fits my compost bin?
Measure your bin’s height and the width across its opening, then match that to a listing’s stated dimensions. A small bag suits a countertop caddy, while a large one is for a tall kitchen can. If you’re unsure, UNNI 2.6 Gallon Compostable Bags lists its exact measurements.
Do these bags work in a backyard compost pile or only a city program?
It depends on the certification. Bags rated OK compost HOME or certified home compostable by DIN CERTCO are made for backyard piles. Others are labeled commercially compostable only, like the small SUPERBIO Compostable Bags, which is why you should check your program’s rules first.
What’s the difference between BPI and TÜV certifications on compostable bags?
Both are independent certifications, but they cover different settings. BPI certifies to the U.S. ASTM D6400 standard, while TÜV AUSTRIA’s OK compost program splits into HOME and INDUSTRIAL ratings. The U.S. Composting Council’s BPI listing explains how the program works. A bag can carry one, the other, or both.
How long can compostable bags sit before they break down?
That depends on storage and use. UNNI and SUPERBIO both say to store bags cool and dry and use them within 9 months to a year. SUPERBIO adds that you should dispose of a bag within 3 days when it holds organic waste, especially anything strongly acidic or alkaline.
Two situations split most buyers here: a small countertop caddy you empty daily, and a tall kitchen can you fill all week. For the caddy, look at the small UNNI Compostable Bags. For the tall can, the large UNNI Compostable Bags. Next step: measure your bin, then match the gallon size.
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Hi, I’m Emma Carter, a passionate home cook with over 12 years of hands-on experience in home kitchens. I love testing kitchen tools, trying new recipes, and helping everyday cooks make smarter buying decisions. Every review and guide I write is based on real cooking experience, practical testing, and honest opinions, not marketing claims.
