CompostabilityCertificationsConsumer Trust

Home Compostable vs. Industrial: Why It Matters for SMB Brands

Cerda Mycelium Team·

96% of US zip codes lack an industrial composter. If your packaging requires one, your consumer-facing sustainability claim has a footnote problem.

The 96% problem

Industrial composting facilities require sustained temperatures above 58°C, controlled moisture, and 90+ day cycles. According to the US Composting Council, only 4% of US zip codes have curbside access to such a facility.

If your packaging is certified "industrial compostable only" (ASTM D6400 alone), 96% of your customers cannot legally claim they composted it.

The home-compostable bar

TÜV Austria OK Compost HOME certification tests degradation at 20–30°C — the temperature of a backyard pile in spring or fall — for 12 months. Materials that pass are functionally compostable anywhere a consumer chooses.

Mycelium passes home compost

Cerda Mycelium inserts complete the home-compostable cycle in 30–45 days. We've documented this with university partners at UNR in Reno.

What this means for marketing

  • Replace "compostable" with "home compostable" in product copy.
  • Avoid the "industrial facilities required" footnote that triggers FTC Green Guides scrutiny.
  • Show a backyard photo of a finished compost cycle on the product page — it converts.

Sample a real piece

Request a Cerda sample insert, drop it in your home compost pile, and photograph it weekly. The proof is in the soil.

Replace foam in your next packaging run.

Free sample inserts grown for your product. Reno-based, ships nationwide.

Request a Sample →