When purchasing a grinder, the choices may
not be many, but the price range is wide, and it is beast to bear in
mind a particular brewing method when choosing a grinder, as the degree
of grind required is dictated by this.
For hundreds of years, coffee to be used
at home was ground by hand with a box-type mill that held only a small
amount of coffee. Anyone who uses one of these, and they are still
available, realizes immediately that a greater storage capacity is not
required. It takes so long to grind the beans that any ground coffee
would be drunk before the little box could ever be full. Still, the hand
mill can grind well, and with a surprising degree of uniformity in the
particles. The grind is adjustable within a range that would qualify as
"coarse", to a "medium" or even "fine", but it cannot grind fine enough
for espresso. These are inexpensive, but it is an extremely time
consuming method of grinding.