7
How the Grind Affects Flavour
The flavour of coffee depends on a
variety of factors, including the
quality, freshness, and roast of the
beans, the purity of the brew water,
the cleanliness of the brewing
equipment, and the brewing
temperature. The fineness and
consistency of the grind is also critical.
Coffee that is ground too fine for a
particular brewing process – using a
fine espresso grind in a drip coffee
maker, for example – will result in the
brew water over-extracting the oils
and aromatic compounds in the
coffee, yielding a brew that is
extremely pungent and bitter.
Conversely, coffee that is too coarsely
ground for a particular process will
result in the under-extraction of the
oils and essences, resulting in a very
thin and weak flavour.
The consistency of the grind is also
an important factor in the flavour of
coffee. If the grounds are uniform,
equal amounts of soluble compounds
will be extracted from each. If the
grounds vary in size, some will be
over-extracted and some will be
under-extracted, leading to extremely
poor quality.
The Model A-9®Coffee Mill uses a
pair of stainless steel cutting burrs to
grind coffee with precision. This helps
ensure that your coffee is the best it
can be.