Grinding coffee with a splash of water reduces static electricity and makes more consistent and intense espresso: Study
Grinding coffee with a splash of water reduces static electricity and makes more consistent and intense espresso: Study
https://phys.org/news/2023-12-coffee-splash-static-electricity-intense.html
The fracturing and friction of coffee beans during grinding generates electricity that causes coffee particles to clump together and stick to the grinder. Researchers report Dec. 6 in the journal Matter that coffee beans with higher internal moisture produce less static electricity, which means less coffee is wasted and there is less mess to clean up.