Quick answer: PET (#1) is the clearest, stiffest cold cup and the best for showing off layered drinks. PP (#5) is tougher and more flexible, and it became "widely recyclable" in the U.S. in 2026. PLA is a plant-based plastic that only makes sense where commercial composting accepts it. Pick based on presentation, your town's recycling and composting access, and lid fit.
Key takeaways
- PET: best clarity, rigid, often labeled "check locally" for recycling.
- PP: durable and flexible; How2Recycle rated PP to-go cups widely recyclable in 2026.
- PLA: compostable only in commercial facilities, and a contaminant in recycling.
- Match the lid material to the cup so the whole package has one disposal path.
Why the cold cup decision matters more every summer
Cold coffee is seasonal but growing. In the National Coffee Association's summer 2026 survey, 21% of past-day coffee drinkers had cold coffee, up from 16% in 2022. Iced lattes, cold brew and cold foam are among the most photographed drinks on your menu, and the cup is half the picture.
The cup is also where customers ask the hardest question: "Is this recyclable?" Your answer depends on the material.
The three materials at a glance
| PET (#1) | PP (#5) | PLA | |
|---|---|---|---|
| Clarity | Crystal clear | Slightly hazy to frosted (clear versions exist) | Clear |
| Feel | Rigid, can crack under impact | Flexible, resists cracking | Rigid |
| Temperature | Cold drinks | Wider range; still use cold cups for cold drinks | Cold only; softens with heat |
| Recycling (U.S.) | Accepted in many programs; often labeled "check locally" | Widely recyclable (How2Recycle, 2026) | Not recyclable; contaminates streams |
| Composting | No | No | Commercial composting only, if certified and accepted |
| Best for | Layered drinks, premium presentation | Durability, recyclability claims, high-volume iced | Shops and venues with composting programs |
PET: the presentation pick
PET is the same family of plastic used for water bottles. Its clarity makes layered drinks (espresso floating over milk, cold foam on cold brew) look their best.
Watch out for: recyclability claims. Many PET cold cups carry a qualified recycling label. One major manufacturer's spec sheet, for example, describes its PET cup as recyclable but "check locally", because not every community's program accepts cups even when it accepts bottles. Thin cups can also crack if squeezed hard or dropped.
PP: the durable, now widely recyclable option
PP cups flex instead of cracking, which matters at drive-thru windows and for heavy drinks. The big news in 2026: after work by How2Recycle, Starbucks, the NextGen Consortium, The Recycling Partnership and WM, polypropylene to-go cups were designated widely recyclable, meaning more than 60% of U.S. households can recycle them through curbside or drop-off programs.
Watch out for: clarity. Standard PP has a soft haze. If your iced drinks are a visual signature, compare clear PP options against PET in person before switching.
PLA: compostable, with conditions
PLA (polylactic acid) is made from plant sugars rather than fossil fuels. Certified PLA cups are designed to break down in commercial composting facilities. That's the key qualifier. Look for third-party certification. BPI certification requires independent lab testing to ASTM D6400 or D6868.
Watch out for: - Access. If your customers don't have a composter that accepts PLA, the cup will likely end up in the trash, or worse, contaminate a recycling bin. - Heat. PLA softens at relatively low temperatures. Keep it out of hot cars and hot storage rooms, and never use it for hot drinks. - Claims. Under the FTC's Green Guides, "compostable" claims should be qualified when commercial facilities aren't available to a substantial portion of customers.
How to choose in five questions
- Is presentation the priority? Layered, colorful drinks: lean PET.
- Do you want to say "recyclable" without heavy caveats? Lean PP, and still check your local program.
- Do you or your customers have commercial composting that accepts PLA? If yes, certified PLA can fit. If no, skip it.
- Do you serve a drive-thru or heavy drinks? PP's flexibility reduces cracked cups.
- What lids are available? A great cup with a mediocre lid is a mediocre cup.
Lids: keep the package consistent
A PET cup with a PET lid, or a PP cup with a PP lid, gives the whole package one disposal path. Mixing a PP cup with a polystyrene lid, for example, undermines the recyclability story you just paid for.
Fit matters too. Cold cup lines often share one lid across several sizes, but only within that line. As with hot cup sizes, buy lids by rim diameter and fit-test before switching.
Cost: what to compare
Material prices move with resin markets, so compare current quotes rather than rules of thumb. Compare cup + lid + straw per drink, and factor in breakage: a cheaper cup that cracks in a carrier costs you a remade drink. For a full framework, see our complete guide to wholesale coffee shop supplies.
Branding cold cups
All three materials can be printed. Clear cups put your logo in front of a colorful drink, which is exactly the kind of photo customers post. If you're weighing printed cold cups, start with our custom printed coffee cups guide and check out the 2026 coffee statistics on how cold coffee is trending.
Choose with Affogato Bean
We supply branded cold cups and matching lids in the material that fits your menu and your town, and we'll help you word your recycling or composting message accurately. Browse cold cups or request samples and compare them side by side with a real iced latte.
Frequently asked questions
What is the difference between PET and PP cups?
PET (#1) cups are rigid and crystal clear, which shows off layered iced drinks. PP (#5) cups are more flexible and slightly hazy or frosted, and they tolerate a wider temperature range. In 2026, How2Recycle classified PP to-go cups as widely recyclable in the U.S.
Are PLA cups recyclable?
No. PLA is a plant-based plastic designed for commercial composting, and it isn't meant for recycling streams. PLA cups only deliver their benefit where customers have access to a commercial composter that accepts them.
Which plastic cup is best for iced coffee?
For presentation, PET is the clearest. For recyclability claims and durability, PP has the edge after its 2026 widely recyclable designation. For shops with commercial composting access, certified PLA can fit. Choose based on your drinks, your town's recycling and composting access, and lid fit.
Can I use the same lid on PET and PP cups?
Not reliably. Lids are engineered for a specific cup line and rim. Match lids to the cup you buy, ideally in the same material so the whole package has the same end-of-life path.
Sources
- GreenBlue / How2Recycle, “More Than 60% of U.S. Households Can Now Recycle Cold To-Go Cups Curbside.”
- Pactiv Evergreen, “Kal-Clear 12/14 oz. Classic PET Cup — product specifications.”
- Biodegradable Products Institute / NSF, “BPI Compostable Products Certification Program (white paper).”
- eCFR / Federal Trade Commission, “16 CFR Part 260 — Guides for the Use of Environmental Marketing Claims.”
- The Shelby Report, “Coffee Trend Survey: Specialty Hits Record, Grocery Share Slips.”
Sources checked October 2026. Statistics are reported as published by each source.