Carbonic anhydrase 1 is an enzyme that in humans is encoded by the CA1 gene. Carbonic anhydrases are a large family of zinc metalloenzymes that catalyze the reversible hydration of carbon dioxide.
It is becoming more common that the latte macchiato will have a layer of milk foam on the top of the drink as well. A latte is steamed milk, espresso, and a 1/4 inch of foam ontop. It is prepared in this order: flavored syrup (if applicable), espresso, steamed milk, topped with 1/4 inch of foam.
See also: latte macchiato and caffe caffÃ¨. Latte The macchiato can be prepared either with steamed hot milk or cold. Milk if, hot the'espresso s name would become macchiato (caldo marked); hot if, cold macchiato (freddo marked). Cold the choice 'between' caldo 'and' freddo is usually a matter of personal. tastes