KitchenAid KPCG100OB Use & Care Guide - Page 22

HOW THE GRIND AFFECTS FLAVOR The flavor 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. oils and essences, resulting in a very thin and weak flavor. If the correct grind is used, adding more coffee simply makes a brew stronger without making it excessively bitter. The consistency of the grind is also an important factor in the flavor of coffee - and absolutely critical FEATURES AND OPERATION 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 when making great espresso. 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. It's not surprising that a precision grind is mandatory for good espresso, which is brewed with near-boiling water under 130-lbs. of pressure. Continued... 21