Compostable Packaging: Materials, Formats, and Suppliers

Compostable packaging is designed to fully break down into non-toxic organic matter (water, carbon dioxide, and biomass) within a defined timeframe under specific composting conditions. That last part matters more than most brands realize.

You will often see compostable and biodegradable used interchangeably. They are not the same thing. Biodegradable is an unregulated term with no required timeline, no certification standard, and no guarantee about what a material breaks down into. Something can technically be biodegradable and still take decades to decompose, or leave behind harmful residues. Compostable has a legal and scientific definition. To carry a compostable claim, packaging must meet standards like ASTM D6400 (U.S.) or EN 13432 (Europe) and be certified by a recognized third party like BPI or TÜV Austria.

There are also two very different types of compostable packaging: industrial and home. Industrial compostable packaging requires the high temperatures and controlled environments of a commercial composting facility to break down correctly. Home compostable packaging can break down in a backyard compost bin. Most compostable packaging on the market today is industrial only, which means it only delivers its environmental benefit if your customer has access to a composting program that accepts packaging.

Compostable packaging works best in specific situations, and being honest about that is more useful than overselling it as a universal solution.

It tends to make the most sense when your packaging is likely to be contaminated with food. Coffee pods, produce bags, foodservice containers, and similar formats where recyclability is already compromised by contamination are good candidates. In those cases, compostable can be the cleaner end-of-life option. It also works well in closed-loop environments where you control how the packaging is collected and processed, like events, corporate campuses, or subscription brands with strong customer education.

Where it gets harder: if your customers do not have access to industrial composting programs in their area, certified compostable packaging often ends up in landfill anyway, which significantly reduces its environmental benefit. It can also come with performance tradeoffs. Barrier properties, shelf life, and equipment compatibility all need to be verified for your specific product and supply chain.

The honest answer is that compostable is a genuinely good option for the right product in the right market. It is not a silver bullet, but it is not greenwashing either. The decision comes down to your product, your customer, and your distribution model.