~Get the Facts~
The way you grind your coffee (and when you grind) is the first step toward influencing how the final brew tastes. Your brewing method will determine what kind of grind you should use. If you are using too coarse of a grind for your brewing method, the coffee will be under-extracted (weak), and less flavorful.
If your coffee is ground too fine for your brewing method, the coffee can be over-extracted and bitter. Small changes in grind size can drastically affect the taste of your final brew. Be sure to read below on Grind Size & Brew Method Recommendations!
The main "rules" of coffee grinding are:
1. Grind your coffee right before you are ready to brew
2. Choose the right grind size (fineness/coarseness)
3. Select and use a high quality coffee grinder
4. Keep your coffee grinder clean
The ideal fineness (or coarseness) of your ground coffee depends mainly on the brewing method you will use.
GRIND SIZE DESCRIPTIONS:
(How to identify your grind size):
Coarse: Distinct, chunky, pieces of coffee beans. Like heavy kosher salt.
Medium: Gritty texture with visible flakes. Like very coarse sand.
Fine: Much smoother texture. Like table salt, maybe a little finer.
Extra Fine: Coffee grains still barely discernable. Finer than granular sugar.
GRIND SIZE & BREWING METHOD RECOMMENDATION:
(How to select the right grind size):
Vacuum coffee pot
Drip coffee makers with flat bottom filters
(BUNN, Bloomfield, etc.)
Drip coffee makers with cone shaped filters
(KRUPS, Cusinart, etc.)
Espresso moka pots
Espresso machines - pump
Espresso machines - steam