Certifications

We want you to be able to trust what's on the label. Here's what our products are tested and certified against.

Compostable mailers & resealable bags

Our mailers and resealable bags are certified compostable both at home and in industrial facilities:

Home compostable: OK compost HOME

• Certification body: TÜV Austria
• Certificate no.: TA8022408191, valid through March 2029
• What it means: the material breaks down in a home compost at ambient temperatures, no industrial facility needed

Industrial compostable: EN 13432

• Certification body: DIN CERTCO (Germany), accredited by DAkkS
• Registration no.: 7P1562, valid through January 2027
• What it means: the European standard for packaging recoverable through composting and biodegradation

Coming in 2027: ASTM D6400

Our supplier is adding certification to ASTM D6400, the US standard for compostable plastics.

Materials: PBAT with modified cornstarch (mailers) and PBAT with PLA (resealable bags).

Biodegradable tape

• Tested by NTSQP based on the postal industry standard for encapsulation tape
• Follows the biodegradable adhesive tape standard YZ/T 0160-2-2017
• Plant-derived cellulose film with natural rubber adhesive; 85% biodegradability in 180 days

Silicone sleeves

• Premium food-grade silicone
• Non-toxic; BPA, BPS and phthalate free

Need a copy of a certificate for your own compliance or marketplace listing? Contact us and we'll send it over.