Manual coffee grinders

Manual (mechanical)

— coffee grinders that operate on a mechanical principle, such as stone mills, enhance the aroma and taste of coffee. These grinders consist of two mill wheels, one fixed to the body and the other rotating with a handle. The coffee beans pass between the millstones, where they are crushed and ground into small particles. This grinding process is slow, ensuring that the beans don't heat up and preventing them from getting burnt. Manual coffee grinders typically feature burrs made of materials like cast iron, hardened steel, ceramic, or stone. When it comes to adjusting the grinding degree, most manual grinders offer step adjustments with clicks, while models with stepless adjustment allow for more precise settings.