Compostable Packaging Resources & Guides
Welcome to the Pure Compostables resource library — a working set of in-depth guides written for the people who actually procure, evaluate, and switch to compostable packaging. You’ll find detailed certification breakdowns (BPI, TUV, EN 13432, ASTM D6400 and beyond), step-by-step playbooks for transitioning a business away from conventional plastics, and product selection guides covering bag sizes, materials, and use cases. Every article is written from the perspective of a manufacturer with thirteen years of operating experience — not a marketing team. Use the categories below to navigate by topic, or browse the most recent guides directly. If your question isn’t answered here, our team is happy to help — start with our wholesale page or send us a note via the contact page.
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Can I Compost Old Cotton T-Shirts?
Yes, with caveats. Pure cotton t-shirts compost well; cotton blends with polyester or spandex don’t. Here’s how to prep them, what to do with the parts you can’t compost, and a realistic timeline.
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6 Signs Your Compost Is Done and Ready to Use
How to tell when compost has finished decomposing and is safe to use on your garden. Six visual, smell, texture, and behavior signals — plus a simple germination test for the uncertain.
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The Restaurant That Won an Award for Composting Every Lemon Wedge
A neighborhood seafood restaurant in the Pacific Northwest got recognized by a regional waste-diversion program after they redesigned their bar workflow to compost every citrus wedge and garnish. Here’s how the workflow change actually happened.
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12 Compostable Items Every Coffee Shop Needs
A practical procurement list for coffee shops switching to compostable disposables. Twelve product categories, what to look for in each, typical price ranges, and which trade-offs matter.
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8 Compostable Books Worth Reading
A reading list of eight books on composting, food waste, packaging design, and circular materials — each with a brief on why it’s worth your time and where it fits in the broader conversation.
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The Basics of Home Composting Methods
A practical introduction to the five main home composting methods — hot pile, cold pile, tumbler, worm bin, and bokashi — with honest trade-offs, real costs, and which method fits which household.
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Compostable Pizza Boxes Buying Guide: PFAS-Free Grease Resistance, Sizing, and B2B Procurement for 2026
Compostable pizza boxes — how grease resistance works without PFAS, sizing across 8-inch through 18-inch formats, kraft vs bleached substrates, custom-print options, and per-unit pricing for pizzeria procurement in 2026.
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The Eggshell Membrane Hack That Speeds Up Compost
A folk tip suggests leaving the inner membrane intact when adding eggshells to compost actually speeds decomposition. The science is partly real, partly overstated. Here’s what’s actually happening.
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A Compostable Coffee Bean Bag That Tells Roast Date in Color
A specialty coffee roaster has tested a compostable bag with a pigment that shifts color over the first 28 days after packing — letting the buyer read freshness at a glance. The chemistry, the appeal, and the practical limits.
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Green Bean Ends: A Compost Quick Win for Kitchen Scraps
Green bean ends are one of the fastest-breaking-down kitchen scraps you’ll add to your compost pile — a quick win for new composters. Here’s why they work so well and how to use them.
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5 Best Compost Tumblers for Apartment Dwellers: A Practical Review
Compost tumblers for apartments need to be compact, odor-controlled, and easy to use indoors or on a balcony. Here’s a practical review of five tumblers that actually work in apartment settings.
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10 Best Composting Programs at Major Coffee Chains: A Survey
Major coffee chains vary widely in their composting programs. Here’s a survey of ten chains with the most credible diversion programs, with details on what each does well.