Before brewing, coffee beans need to be cut into smaller pieces. Making espresso requires a finer grind than most methods, with particles around the size of table salt. you know you're in the right neighbourhood once the ground coffee beings to clump together.
Grind a few beans to check for appropriate fineness and purge your grinder of stale grounds. The coffee should clump loosely and appear powdery, but should still feel gritty when rubbed between your fingers.
Savour and enjoy!
The Forge Coffee Roasters,
Don Road, Sheffield,
S. Yorkshire, S9 2TF