At Cup Source, we believe that "eco-friendly" means nothing if the product doesn't end up in the right place. Our certified compostable products are designed to break down naturally, returning nutrients to the earth. However, the difference between a landfill and a compost pile is often just one step: correct disposal.
Industrial Composting
Most of our plant-based products are certified ASTM D6400 or EN 13432. This means they require the high heat and humidity found in industrial facilities to break down efficiently (usually within 90 days).
Home Composting
A select range of our products (marked with the "Home Compostable" logo) can break down in your backyard bin. These require less heat but may take 6–12 months to fully decompose.
Know Your Labels
Not all "biodegradable" plastics are compostable. Here is how to identify Cup Source products.
✅ Certified Compostable
Look for the Trefoil Logo or BPI Seal on the cup. This guarantees the cup and coating are made of natural materials and will decompose in a composting environment.
❌ Not Compostable
Standard plastic lids and clear PET cups are recyclable, not compostable. If you see "PP" or "PS" on the bottom, it is plastic and should go in the recycling or trash bin.
Step-by-Step Disposal Guide
Follow these steps for your next Cup Source takeaway.
Empty the Contents
Pour out all liquid contents. If the cup contains food waste (like leftover soup), scrape it into the compost bin. We want the cup itself to be relatively dry.
Remove the Lid
This is the most common mistake! Even if the cup is compostable, the lid might be plastic. Separate the lid from the cup immediately.
Check the Certifications
Look at the bottom of the cup. If it says "Industrial Compostable," take it to your local municipal facility. If it says "Home Compostable," it can go in your garden bin.
Tear or Rip the Cup
To speed up the process, tear the cup into 3–4 pieces before tossing it in the compost. This increases surface area for bacteria to work.
Frequently Asked Questions
No. "Biodegradable" does not mean it breaks down everywhere. Our products require specific conditions of heat, moisture, and microorganisms found in composting facilities. Throwing them in the ocean causes pollution.
Paper cups and plant-based plastics usually cannot be recycled with standard paper because of their wax or PLA lining. If they go in the paper recycling bin, they can contaminate the batch. Composting is their intended circular path.
If you cannot access an industrial facility, please check our "Home Compostable" range (marked with the seedling logo). Otherwise, the cup may need to go to landfill, though we encourage you to contact your local waste management for drop-off points.
Most standard lids are plastic (PP) and are not compostable. We do offer PLA lids (clear plastic that looks shiny) which ARE compostable. Check the symbol on the bottom of the lid to be sure.
Ready to Go Green?
Browse our certified compostable collection for your business.