Ristretto (Italian pronunciation: [risˈtretto][1][2]) is a "short shot" (30 ml from a double basket) of a more highly concentrated espresso coffee. It is made with the same amount of ground coffee, but extracted with a finer grind (also in from 20 to 30 seconds) using half as much water. A normal short shot might look like a ristretto, but in reality, would only be a weaker, more diluted, shot.[3] The opposite of a ristretto (which means in Italian, "shortened, narrow") is a lungo ("long"), which is a double shot. The French call a ristretto a café serré.Regardless of whether one uses a hand pressed machine or an automatic, a regular double shot is generally considered to be around 14–18 grams of ground coffee extracted into 60 ml (2 fl oz or two shot glasses).[4] Thus, a "double ristretto" consumes the same amount of coffee beans but fills only a single shot glass.Coffee contains over a thousand aromatic compounds.[5] A ristretto's chemical composition and taste differ from those of a full-length extraction for three reasons: [Wikipedia]
