Which coffee filters contain no plastic, thread and rim included?
Short answer: we can't find a plastic-free coffee filter we can verify. Every candidate we checked had a plastic part beyond a small seal, or one we could not confirm. The list below says which.
Nothing here is listed yet. The one filter we've finished checking is a glass pour-over with a stainless mesh filter, and its handle has no stated material, so it sits under checked and not listed until the maker answers. More filters are still being checked.
Side by side
Every coffee filter we checked, and what kept each one off the list. The full evidence for each is one click away.
| Rank | Photo | Materials | Packaging | Price seen | The catch |
|---|---|---|---|---|---|
| Checked, not listed | |||||
 | AdHoc Impact Pour Over Coffee Maker, Stainless Steel & Glass (1 L) Cannot tell | ||||
| borosilicate glass, stainless steel | Not verified yet | Not linked | A major part is unverified | ||
Where plastic hides in coffee filters
The filter material is the easy part: unbleached cotton, hemp, paper and steel mesh are all fine. The plastic sits around it. A cloth filter is sewn with polyester thread unless the maker names cotton, and some hold the cone open with a wire or plastic ring. A steel mesh basket arrives with a silicone rim or a plastic handle. Porcelain and glass drippers can carry a silicone gasket or a plastic base. Paper is cellulose, so the thing to check is the sleeve around the stack. A cotton filter that never names its thread has left the question open.
What to check before you buy
- The thread: named as cotton, or not mentioned?
- What holds the shape: nothing, a steel wire or a plastic ring?
- The rim and handle on a mesh basket: steel all through, or silicone and plastic?
- The dripper: steel, porcelain or glass, and what is the gasket or base pad?
- Dyes, sizing and bleaching on the cloth: named, or left out?
- Packaging: paper and card, or a plastic sleeve around the stack?
Know of one?
If you make or own a coffee filters with no plastic in it, including the seal, tell us: chairman@amaterio.com. Send the maker's page and what the seal is made of. We vet every tip and publish the ones that hold up, with credit.
Checked and not listed
- AdHoc Impact Pour Over Coffee Maker, Stainless Steel & Glass (1 L)
Cannot tellThe carafe is borosilicate glass and the filter is a double-layer stainless mesh. The filter has a handle, and nobody says what it's made of. Grove calls the whole thing 100% plastic-free, but that's a claim about what's missing, not a material, and the handle is the part your hand holds when you lift the hot filter out. Until AdHoc names it, we can't say this one is plastic-free.