0

What causes static in a coffee grinder's receptacle?

The question of how to reduce static has been asked multiple times on cooking SE (see https://cooking.stackexchange.com/search?page=1&tab=Relevance&q=coffee%20static). However, I can't find a legitimate answer as to why ground coffee has static build up. Some discuss moister in the beans, but how is that related to static?

5

I don't know anything about burr grinders, but with blade grinders you generally get tiny bits of coffee bean being spun quickly around the outer edge of a plastic enclosure. This is a recipe for generating static electricity by the triboelectric effect, the same as rubbing a balloon on your hair or shuffling your feet across a polyester carpet.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.