UNNI Compostable Lawn & Leaf Bags 30-33 Gallon Value Pack - Thick

Our review of the UNNI Compostable Lawn & Leaf Bags finds them best for households and facilities that need a dependable, large-capacity compost liner. The single biggest reason to buy is the combination of generous 33 gallon / 124 liter capacity and proven certifications that confirm these bags break down in home and industrial compost systems, so users can replace conventional plastic without losing functionality. They come in a bulk 40-count value pack that fits 30-33 gallon cans and simplifies yard, leaf, and food-scrap collection.

Key Features

• Bulk Value Pack: Two rolls of 20 bags (40 total) provide a large supply for busy households, schools, or facilities and reduce frequent restocking.
• Large Capacity: At 33 gallon / 124 liter size (32.5 in x 40 in) the liners fit standard 30-33 gallon cans and handle both yard debris and kitchen scraps without constant transfers.
• Reinforced Thickness: The 1.1 mil construction gives these compost bags more tear resistance than ultra-thin liners, helping them hold heavier garden debris and wet scraps.
• Certified Compostable: Independently certified by BPI, CMA, and OK compost HOME to meet ASTM D6400, so they are designed to compost in both industrial and backyard systems.
• Plant-Based Materials: Made from renewable materials to reduce reliance on conventional plastics while remaining suitable for kitchens, bathrooms, and offices.
• Storage Guidance: Storing in a cool, dry place and using within 12 months helps preserve strength and compostability for best performance.

Who It's For

The UNNI Compostable Lawn & Leaf Bags are a good fit for households with a dedicated compost can, small community gardens, schools, or facilities that collect high volumes of food scraps and yard waste and want certified compostable liners. They are particularly useful where users want compatibility with home composting as well as acceptance in some commercial composting programs.

Those who should look elsewhere include users who need ultra-heavy-duty plastic performance for very sharp or wet debris that risks puncturing a thin liner, or people in areas without any composting infrastructure, since local compost availability can affect usefulness.

Pros & Cons

Pros

• Generous 33 gallon capacity fits common outdoor cans and reduces bag changes for large loads.
• Trusted certifications (BPI, CMA, OK compost HOME) back real compostability in home and industrial systems.
• Bulk 40-count pack offers strong value for frequent composters and facility use.
• Plant-based construction reduces reliance on conventional plastics.

Cons

• Durability is mixed for some users; heavier or sharp yard waste can still tear the 1.1 mil material.
• Commercial composting acceptance varies by location, so availability is not guaranteed everywhere.

Specifications

Brand	UNNI
Capacity	30-33 gallon / 124 liter
Bag Size	32.5 in x 40 in
Count	40 bags (2 rolls x 20)
Thickness	1.1 mil
Certifications	BPI, CMA, OK compost HOME (meets ASTM D6400)
Storage	Store cool, dry; use within 12 months

Our Verdict

UNNI Compostable Lawn & Leaf Bags are a practical, certified alternative to conventional plastic liners for anyone collecting larger volumes of yard waste and food scraps. The 33 gallon size, reinforced 1.1 mil thickness, and bulk 40-count value pack make them a cost-effective choice, though users handling very sharp or very wet loads should take care to protect the liner. Overall, they offer strong compostability credentials and good value for home and small institutional use.

Frequently Asked Questions

Are these bags truly compostable at home?
Yes; they are OK compost HOME certified and meet ASTM D6400, so they are designed to break down in home/backyard composting when used properly.

Will the bags fit my outdoor can?
They are sized for 30-33 gallon cans (32.5 in x 40 in) and will fit most standard 30-33 gallon lawn and leaf containers.

How long can I store these bags?
Store in a cool, dry place and use within 12 months for best performance and compostability.