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.
Macchiato is also called espresso macchiato. The word macchiato is the Italian word for stained, so espresso macchiato means that the espresso has been stained. The stain in this case is the milk. In other words, macchiato is nothing but espresso mixed with milk. But the amount of milk used in this is less. Earlier, as the word âstainâ refers, only a little amount of milk was added to the drink. But today, it is the milk foam added on top.