Depending on what kind of coffee machine you’re using, the kind of grind you will want to use will vary. Here’s a quick run-down of which grind consistencies to use for which machines. If you stick to these guidelines you’ll be sure to get the very best out of your beans.
Extra fine – Turkish coffee (as this is unfiltered)
Fine ground – Espresso machines, stove top mokka pots
Medium ground – Pour over brewers, drip machines
Coarse ground – French press, percolator, and Chemex
Extra course ground – Cold brew coffee makers like the Toddy, or the Hario Mizudashi