coffeeCoffee drink is made from the roasted and milled in special mills fruits (beans) coffee tree. The chemical composition of roasted coffee beans (in percent): nitrogenous substances - 13,0-14,0; caffeine - 1,25; fat - 18,0; sugar - 2,8; dextrins - 1,4; tannins - 4,6; mineral substances - 4,6; fiber - 18,0. The main part of coffee, causing stimulating and tonic effect of the drink is caffeine (see).
In addition to natural, commercially available substitutes of coffee made from a variety of plant products (chicory, barley, acorns and other).