10 Best Compost Bags 2026 in the United States

The UNNI Compostable Liner Bags are designed for medium-sized bins with an 8-gallon capacity, ideal for collecting food scraps. Made from compostable plant starch, these bags are a green alternative to traditional plastic, supporting sustainable living. They come in a size of 20 inches by 24 inches and have a thickness of 0.85 mils, providing a balance between durability and eco-friendliness.

Certified compostable in the U.S. (ASTM D6400) and Europe (OK compost HOME), these bags meet stringent standards for home and commercial composting, verified by the Compost Manufacturing Alliance. This ensures that they decompose effectively under the right conditions, contributing to a cleaner environment. However, it's important to store these bags in a cool, dry place and use them within a year to maintain their integrity.

Despite their strong certification credentials, availability of commercial composting facilities may vary, so local verification is recommended. With a high customer rating of 4.6 out of 5 stars, users appreciate their effectiveness, although some might find the need for careful storage a minor inconvenience. Unscented and green in color, these bags are a practical choice for those dedicated to reducing their environmental footprint.

The SUPERBIO 13 Gallon Compostable Kitchen Waste Bags are designed for household food waste disposal, offering a good balance of size, strength, and compostability. Made from PLA and PBAT materials, these bags are certified by well-known standards like BPI and OK compost INDUSTRIAL, which ensures they break down in industrial composting settings. They hold 13 gallons of waste and measure about 22.8 by 36.6 inches, with a thickness of 0.87 mil, making them strong enough to handle typical kitchen scraps without tearing easily. The bags come with handles and a reinforced bottom, which helps securely tie up and carry even heavier loads.

These bags require proper composting facilities and are not guaranteed to break down in home compost piles, which might limit use depending on your local composting options. It is recommended to dispose of food waste in these bags within three days to avoid odor or bag degradation. With 30 bags per roll, they offer good value and convenience for daily kitchen use. The product is unscented and has a shelf life of about one year if stored in a cool, dry place.

This product suits people who want an easy, certified compostable option for kitchen waste and have access to industrial composting programs.

The SUPERBIO 2.6 Gallon Compostable Bags come as a pack of 100 sturdy, food scrap bags with handles, designed for easy tying and carrying. Made from PLA and PBAT, these bags are certified compostable by respected organizations like BPI and TÜV, meeting industrial composting standards (ASTM D6400 and EN 13432). At roughly 16 by 22 inches and 0.67 mil thick, they offer a good balance of size and durability for household food waste. The bags feature reinforced star-sealed bottoms and handle ties, making them strong enough to hold heavier organic waste without tearing easily when used as directed. They are unscented and designed for indoor use but can handle a variety of household organic scraps.

One limitation is that they require industrial composting facilities to break down properly, so they might not decompose effectively in a backyard compost setup. Also, users should dispose of waste within three days to avoid issues with acidic or strong-smelling contents. The bags have an average shelf life of about one year if stored in a cool, dry place. These bags are ideal for anyone looking for an eco-friendly, convenient option to manage food scraps while ensuring the bags break down in commercial composting. If access to industrial composting is not available, these bags may not fully meet composting needs.