How Businesses Can Choose the Right Compostable Packaging Materials

By Pure Form Solution · Published 2026-11-02

Compostable packaging breaking down in a composting environment at end of life

Compostable does not mean the same thing everywhere

Compostable packaging is designed to break down in a composting environment and leave no harmful residue, but the environment matters. Industrial composting uses managed piles with sustained high temperatures. Home composting is cooler and less controlled. Soil and marine settings are different again.

A package can be certified for one of these conditions and not the others. Choosing the right material starts with knowing where your packaging will actually end up.

Step 1: Map your disposal route

Ask where used packaging goes. A stadium with a dedicated organics hauler can use items certified for industrial composting. A hotel that composts on site, a school garden or a customer taking food home may need items certified for home composting. If there is no composting collection nearby, a compostable label alone will not change the outcome.

Write down the realistic route for each product and use that as your selection criterion.

Step 2: Match material to application

PLA for cold and rigid items

PLA suits clear, rigid, cold applications such as produce clamshells, cold cups and bottles. It is designed for industrial composting.

PHA for demanding or multi-environment use

PHA is used for straws, utensils, stirrers, containers, jugs, coffee bags and pill bottles. Qualifying products are certified under more than one standard, such as OK Compost Home and OK Biodegradable Soil.

Blends and formulations

Some products combine materials. Do not assume a certificate for one formulation applies to another. Ask for the certificate for the specific item.

Step 3: Verify certifications

Look for independent testing and a certificate number rather than a general claim. Our materials are tested by TÜV Austria, and our certifications page lists which standard applies to which product. Check that the certificate names the product or material you are buying, the standard it meets and the conditions covered.

If a supplier cannot show documentation for the exact item, treat the compostable claim as unverified and avoid repeating it on your own signage or marketing.

Step 4: Test performance in real conditions

Request samples and use them the way your customers will. Fill cups with hot and cold drinks, hold food at serving temperature, stack and store the packaging, and try your sealing or lidding process. Record leaks, softening, stiffness, taste or odor issues and how staff and customers respond.

Testing in your own conditions is the only reliable way to confirm performance, because specifications on a datasheet cannot cover every product and workflow.

Step 5: Check food-contact and regulatory needs

Food, beverage and pharmaceutical packaging is subject to regulatory requirements that vary by region and use. Ask the supplier for the documentation that applies to your intended use and have your compliance team review it. Do not assume that a compostable certificate also covers food contact or pharmaceutical suitability, because these are separate questions.

Common mistakes to avoid

Assuming all compostable packaging is the same

A product certified for industrial composting may not break down in a home compost heap or in soil. Match certification to disposal route.

Skipping the pilot

A datasheet cannot tell you how a cup lid fits your cup or how a container behaves in your delivery bag. Sample first.

Overstating claims

Printing compostable or biodegradable on signage without a certificate for the exact item creates risk. Keep claims inside what the documentation supports.

Ignoring waste handling

If compostable items end up in general waste or recycling streams, benefits are lost and recycling can be contaminated. Train staff and label bins.

Commercial and home composting at a glance

Commercial or industrial composting facilities operate at sustained high temperatures and manage moisture, airflow and turning, so they can break down materials such as PLA that need those conditions. Availability varies widely by city and region, and some facilities accept only specific product types, so confirm acceptance with your hauler before you buy.

Home composting is cooler and less predictable, which is why certification for home composting is a more demanding claim. Our PHA products are tested by TÜV Austria, and qualifying items carry OK Compost Home certificates under defined conditions. Our PLA products are certified for industrial composting only.

Questions to put to every supplier

Before ordering, send the same short list of questions to every supplier. Clear, documented answers are a good sign. Vague answers, or certificates that do not name the product, are a warning.

Which standard does this item meet?

Ask for the standard, the certificate and the test conditions, for example industrial composting or home composting.

Does the certificate cover the whole product?

Lids, liners, inks and adhesives can matter. Confirm the certificate covers the finished item, not only the base resin.

What are the temperature and use limits?

Ask for the recommended use range, then test it yourself.

What are the minimum orders and lead times?

Make sure supply fits your usage pattern, including seasonal peaks.

Putting the guide into practice

Build a one-page specification for each packaging item: application, temperature range, material, certificate, disposal route, supplier and price at volume. Use it to compare candidates, to brief staff and to answer customer questions consistently.

Review the specification when something changes: a new supplier, a new menu item, a change in local composting rules or an updated certificate. Packaging decisions that are written down and reviewed regularly hold up far better than those made once and forgotten.

Step 6: Plan supply, price and communication

Compare price at your real volume, lead times and minimum orders, and ask about custom or co-branded formats if you need them. Then communicate the change honestly. Tell customers what the item is made of and how to dispose of it, and avoid claims that go beyond the certificate.

When you are ready to compare options, explore the PHA packaging solutions hub, review the industry page closest to your business and request samples or wholesale pricing for a pilot.