Grind Size

Grind size refers to how coarsely or finely coffee beans are ground, and it's one of the most critical variables in coffee brewing. The size determines the surface area exposed to water and how quickly extraction occurs. Fine grind (like table salt) is used for espresso, medium-fine for pour-over, medium for drip coffee, and coarse (like sea salt) for French press and cold brew. Grind size must match brew method and time - finer grinds extract faster, coarser grinds extract slower. Inconsistent grind size (mix of fine and coarse particles) causes uneven extraction. Burr grinders produce more consistent particle sizes than blade grinders. The ideal grind size depends on your specific equipment, water temperature, brew time, and personal taste preferences.