Hemingway Coffee Bags are 100% Omnidegradable. This special biodegradable material will degrade in a backyard compost, aerobic and anaerobic landfills, rivers, lakes and oceans. At the same time, the bags are sealable, shelf-stable and contain a one-way valve to provide the same level of protection and freshness as more typical coffee packaging. The film does not depend on water, heat, sunlight, or oxygen to degrade. It only reacts with the ever-present microbes in the soil and water, making it break down even faster.
The European Union’s Committee on Sustainable Plastics commissioned a study on the film, and called this product “the only viable solution available today”.