Plastic Bag Coffee? Yeah, You’re Probably Drinking It

Would you ever sip your morning coffee out of a plastic bag? exactly. Neither would we.

But here’s the wild part, you basically already are if you’re still using single-use takeaway cups.

The Hidden Plastic in ‘Paper’ Coffee Cups

They may look like paper on the outside, but most disposable coffee cups are lined with plastic on the inside. Checkout The KeepCup viral video showing the plastic lining.
That thin, invisible layer? It’s polyethylene plastic and it’s what keeps your flat white from soaking through the cup. But when hot liquid meets plastic? That’s where things get concerning. Recent studies show that just one 100ml serving of hot coffee in a disposable cup can release around 25,000 micron-sized microplastic particles into your drink. Yep, twenty-five thousand. In every cup and then you guessed it, you drink them.

So What’s the Solution?

Ditch the disposables. Swap your single-use cup for a KeepCup and avoid ingesting microplastics before 9 a.m. Not only does a KeepCup reduce your environmental footprint, but it also cuts out the hidden plastic exposure that comes with disposables. It’s better for the planet and for your body.

• Durable, reusable and designed for daily use
• Made with safe, BPA- and BPS-free materials
• Recycled and recovered material
• Modular and repairable, so you can replace parts instead of tossing the whole thing

Small Change, Big Impact

Every time you reuse, you’re saying no to more than just waste. You’re opting out of the hidden impacts that single-use culture brings like plastic bag coffee. Ready to make the switch? Explore our full range of reusable cups and travel mugs. Let’s leave plastic bags to the grocery aisle, not our coffee routine.

The Fix Is Simple

Switch the cup. KeepCup is made from materials that don't shed microplastics into your drink — glass, stainless steel, and BPA and BPS-free plastics designed for daily contact with hot liquid.

No polyethylene lining. No invisible particles. Just the coffee.

Brew Cork
Tempered glass — no plastic in contact with your drink at all. The cleanest possible material for hot coffee. Natural cork band, splashproof lid, barista-standard sizing.
Shop Brew Cork >

Commuter Travel Mug
Electropolished 18/8 stainless steel interior. Vacuum insulated, fully sealed, flip-open lid. Hot coffee stays hot — and the steel carries nothing forward.
Shop Commuter Travel Mug >

KeepCup Original
BPA and BPS-free polypropylene. Lightweight, unbreakable, made in the UK. The cup that started the category — and the easiest swap from a disposable.
Shop KeepCup Original >

KeepCup Camp Mug
Double-wall vacuum insulated stainless steel. For the days when you have outdoor feelings.
Shop KeepCup Camp Mug>