The ergonomic with nubs makes the grinding process particularly gentle and quiet, even for morning grinders who do not want to wake their family is a simple but coffee grinder that sits comfortably in the hand and allows fatigue-free grinding The manual coffee grinder can be easily disassembled, so you can remove any coffee grounds residue with a brush before washing Choose "Ultra Coarse" for your coffee machine and "Extra Fine" for this manual coffee bean mill. Align the tabs to the groove and turn and lock the lid as soon as aligned to grind the bean to the consistency you prefer Unlike conventional metal grinders, our professional grinder stays cool during grinding, preserving the original taste of the bean. Add the perfect amount of coffee beans to always achieve a delicious result Fits easily into any travel bag, so you can enjoy a tasty cup of coffee when travelling or camping