10 Best Compost Bags 2025 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 UNNI Compostable Liner Bags are a great option for those looking to manage kitchen food scraps in an eco-friendly way. Made from compostable material, these bags have a capacity of 2.6 gallons (9.84 liters) and are extra thick at 0.71 mils, providing durable and reliable use in small kitchen bins. Their size, 16.3 inches by 16.5 inches, makes them suitable for compact waste bins, which are often found in kitchens. The thickness ensures they can handle food scraps without easily tearing, which is a common problem with thinner bags.

One of the standout features of these bags is their impressive array of certifications, including ASTM D6400 for industrial composting in the U.S., OK compost HOME certification by TÜV Austria for home composting in Europe, and CMA verification for reliable decomposition in real-world composting environments. This means you can be confident they will break down properly in both home and industrial composting systems, provided you follow the usage and storage guidelines. It’s recommended to store the bags in a cool, dry place and use them within a year to ensure optimal performance.

A potential drawback is that commercial composting facilities may not be available in all areas, so you should verify local availability. Additionally, these bags are unscented, which might be a plus or minus depending on your preference for controlling food waste odor. With a high customer rating of 4.6 out of 5 stars from over 26,000 reviews, these bags are well-regarded by users. They are also a sustainable choice, helping to replace traditional plastic bags and reduce environmental impact. These compostable bags are ideal for anyone committed to sustainable living and looking for an effective and certified option for managing kitchen food scraps.

The SUPERBIO 1.6 Gallon Handle Tie Compostable Food Scrap Bags are made from compostable plant-based bioplastic, making them an environmentally friendly choice for managing food waste. These bags hold up to 1.6 gallons of waste and come in a convenient 50-count pack, with dimensions of 16.1 inches by 19.3 inches and a thickness of 0.63 mil. The handle tie and star-sealed reinforced bottom provide extra durability and prevent tearing, even with heavy loads.

It is important to store these bags in a cool, dry place, as they have a shelf life of about one year and should be used within three days when holding organic waste, especially if acidic or alkaline. The decomposition rate is compliant with ASTM D6400 and EN 13432 standards, as evidenced by BPI and OK compost INDUSTRIAL certifications. This ensures the bags are commercially compostable, though availability of commercial composting facilities varies by location.

These bags are unscented and come in a compact, lightweight packaging. If you're looking for a small, certified compostable bag for food waste, these could be a good fit, provided you have access to the necessary composting facilities.