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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Microplastics in Food Packaging: A 2026 Research Roundup for B2B Procurement Teams
What 2026 research shows about microplastic shedding from food packaging — by material category, by application, what regulatory direction is taking, and the procurement implications for B2B foodservice operators.
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How to Train Staff on Composting in a Restaurant
Training restaurant staff on composting is the operational bridge between deciding to compost and actually composting effectively. The training matters because composting success depends on consistent staff behavior — kitchen workers sorting prep waste correctly, servers handling guest waste streams, busers managing post-meal waste, custodial staff maintaining bin systems. A typical 30-person restaurant team needs…
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Cold Brew at Home: Eliminating Cold Cup Waste
A daily cold brew habit from coffee shops generates roughly 500-1,000 single-use cold cups per year per person, plus straws, lids, and sometimes cardboard sleeves. Making cold brew at home eliminates this waste stream entirely. A home cold brew setup costs $20-100 once, takes 15 minutes of active time weekly, and produces 4-7 days worth…
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9 Compostable Bag Sizes Compared by Volume
Compostable bags come in nine common size categories, each designed for specific applications. From the smallest 1-gallon kitchen pail liner to the largest 64-gallon commercial trash bag, the volume affects pricing, durability requirements, intended use, and composter acceptance. A foodservice operator running a comprehensive sustainability program may use 4-6 different bag sizes across different waste…
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Espresso Machine Pucks: A Surprisingly Compostable Output
An espresso machine produces a compressed disk of spent coffee grounds — called a ‘puck’ — after each shot. A household making 1-3 espressos daily produces 100-300 pucks per month, totaling roughly 1-3 pounds of spent grounds. These pucks are one of the cleanest compost inputs available: high nitrogen content, near-perfect moisture, no contamination, and…
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Are Bamboo Plates Always Compostable?
No, bamboo plates are not always compostable. The ‘bamboo’ label hides important variations: pure bamboo fiber plates (compostable, biodegrade in months), bamboo-melamine composite plates (not compostable; melamine is a synthetic plastic), bamboo-PLA blends (industrial compostable only), and bamboo dishware with synthetic glues or finishes (variable). For consumers, the key is reading certification marks and material…
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Onion and Garlic Skins: Should You Compost Them?
Yes, you can compost onion and garlic skins. The common warnings against them are partly true and partly overstated. The sulfur compounds that give alliums their pungent smell can discourage earthworms in vermicomposting systems, and the dry papery skins decompose slowly. But for most backyard compost piles, onion and garlic skins are fine inputs that…
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Vermicomposting Setup for First-Timers in 30 Minutes
A first vermicomposting setup takes about 30 minutes once you have the bin and worms in hand. The Worm Factory 360, Hungry Bin, Urbalive, or a DIY rubbermaid tote all work for apartment-scale or small-home vermicomposting. The basic recipe: bedding (shredded paper or coconut coir), worm-friendly food scraps, and red wigglers (Eisenia fetida). Once set…
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Composting at Altitude: Adjusting for Thin Air and UV
Composting at high altitude — above 5,000 feet, increasingly above 7,000 feet — presents challenges that lower-elevation composters don’t face. Thinner air affects microbial respiration; lower atmospheric pressure speeds water evaporation; high UV exposure can sterilize pile surfaces; lower temperatures slow decomposition; and the often-dry climate adds moisture management complexity. Composters in Denver, Boulder, Albuquerque,…
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Indoor Houseplants: Composting When They Outgrow Their Pots
Indoor houseplants outgrow their pots over time. A pothos that started in a 6-inch nursery pot in year one may need an 8-inch pot by year two and a 10-inch pot by year three. When you repot, you generate organic waste: old root-bound soil, broken pieces of dead leaves, sometimes the old pot itself. Most…
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How to Set Up Pre-Production Sample Testing
Pre-production sample testing is the procurement step where a supplier’s claims about a compostable foodware product get verified against actual product performance and operational fit. A typical mid-size foodservice procurement decision should include 3-7 samples evaluated across functional performance, customer experience, supplier consistency, and end-of-life pathway. The sample testing typically takes 2-4 weeks and costs…
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Oven Spills: Baking Soda Paste vs Commercial Cleaners
Oven spills are inevitable in any active kitchen — bubbling lasagna, dripping pie filling, exploding food experiments. The conventional response is commercial oven cleaner: caustic chemical sprays that work fast but produce hazardous fumes, require ventilation, can damage some oven surfaces, and arrive in plastic packaging that ends up in landfill. The natural alternative —…