Short answer
What is the most eco-friendly cup for cold drinks — rPET or PLA?
rPET cold cups are made from recycled PET and are recyclable again where plastic collection exists, which makes them the stronger choice for most UK sites. PLA cups are plant-based and certified compostable, but only deliver that benefit with industrial composting or anaerobic digestion. Pick the one your local collection can actually process.
rPET
rPET uses recycled content, so it keeps existing material in circulation and sits favourably against plastic packaging tax thresholds when recycled content is high. It is clear, rigid and holds up well with ice.
It needs a plastic recycling collection to close the loop — widely available, but do confirm your contractor accepts cups and lids.
PLA
PLA is made from plant sugars and carries compostability certification. It looks and feels like conventional clear plastic, so there is no compromise on presentation.
In a plastic recycling stream it is a contaminant, and in landfill the certification is irrelevant. Without composting or AD access, its advantage is theoretical.
Deciding well
Ask one question: which bin will these cups genuinely end up in? Recycling collection points to rPET. Food waste, AD or industrial composting points to PLA. General waste means neither claim holds, and the collection should be fixed before the cup is changed.
Straws, lids and the whole unit
Judge the served drink, not just the cup. A recyclable cup with a mismatched lid and a plastic straw undermines the effort. Match lid material to cup, and use paper straws or strawless lids where the drink allows.
Key takeaways
- rPET is recyclable and uses recycled content — the safer default.
- PLA is compostable only with composting or AD access.
- Decide from your actual waste collection.
- Match lids and straws to the cup, or the claim collapses.
Author
Lan Olitoquit
Creative and Marketing Professional
Lan is a creative and marketing professional with over seven years of experience. He transforms brand messaging into compelling digital experiences, using data to craft high-converting campaigns. He is currently pursuing an MBA at San Beda College Alabang, bridging what business knows with what business does.
View all posts