Opus
A popular design-forward electric burr grinder that looks premium but runs beans and grounds entirely through plastic - plastic hopper, plastic catch cups, plastic body. Documented so you can tell the styling from the materials.
Plastic-free verdict: Minimal plastic contact
The burrs are 48mm stainless steel, but essentially everything else in the coffee path is plastic. Fellow's own materials list is "high-quality ABS, PC, nylon, and POM plastics, stainless steel conical burrs, and wood accents." The bean hopper is plastic, the two magnetic catch cups (standard and espresso) are plastic, and the exit chute the grounds pass through is plastic. Grounds fall through plastic into a plastic cup - which is why the Opus builds in an ionizer to fight static. It's BPA-free and nicely made, but it is not a plastic-free grinder; the metal is basically just the burrs.
Verification: Manufacturer confirmed · reviewed 2026-07-06
What it's made of
| Part | Material | Food contact |
|---|---|---|
| burrs 48mm stainless steel conical burrs - the main non-plastic contact part | Stainless Steel (304 / 18-8) | Yes |
| hopper plastic (ABS/PC); beans are loaded into and pass through this | Plastic (other / unspecified) | Yes |
| exit chute plastic; grounds pass through here (includes anti-static ionizer) | Plastic (other / unspecified) | Yes |
| catch cups (standard and espresso) two plastic magnetic grounds cups | Plastic (other / unspecified) | Yes |
| body ABS/PC/nylon/POM plastics with wood accents depending on colorway | Plastic (other / unspecified) | No |
Included as a deliberate "looks premium, isn't plastic-free" reference, because the Opus is exactly the electric grinder people ask about. Fellow's design-first reputation and the grinder's clean matte styling make it a frequent pick in "nice coffee setup" and even "non-toxic" guides, and it is a genuinely good, BPA-free, well-reviewed grinder. But the parts that touch beans and grounds - hopper, chute, and both catch cups - are plastic, with the stainless steel confined to the burrs. The built-in anti-static ionizer is a tell: grounds cling and scatter because they're moving through and landing in plastic. If the goal is keeping coffee away from plastic, any of the metal-bodied hand grinders on this page do that and the Opus doesn't, despite the price and the looks.
Pros
- Stainless steel burrs; good, consistent grind for the price
- Well-designed, quiet, single-dial adjustment; anti-static ionizer
- BPA-free plastics
Cons
- Plastic hopper, chute, and catch cups - beans and grounds travel through plastic
- The anti-static feature exists because the grounds path is static-prone plastic
- Reads as a premium clean upgrade but isn't plastic-free where it counts
Categories: Coffee Grinders
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://fellowproducts.com/products/opus-2-conical-burr-grinder brand materials list - "high-quality ABS, PC, nylon, and POM plastics, stainless steel conical burrs, and wood accents"; 48mm stainless burrs; integrated anti-static ionizer
- review https://www.coffeeness.de/en/fellow-opus-review/ independent review confirming plastic hopper, plastic grounds container (magnetic), and plastic body with stainless burrs
- manufacturer https://help.fellowproducts.com/hc/en-us/articles/12697463022619-The-anti-static-on-Opus-stopped-working-and-it-s-messy support article on the anti-static feature and grounds clinging - reflects the static-prone plastic grounds path