All Drinks Summary Here is a list of all the drinks with ratios and how many mls of milk per drink type. Ristretto - 1:1.5 ratio with 20g of coffee = 30mls extracted coffee. Espresso - 1: 2 ratio with 20g of coffee = 40mls extracted coffee. Americano - Take client hot water so he can pour his own. Cortardo - Add 40 mls, 80 mls or 100mls of milk (ask client what version). Flat White -    1:3 ratio = 120 mls of milk. Cappuccino - 1:3.5 ratio = 140 mls of milk. Latte -             1:4 ratio = 160 mls of milk. Iced Coffee (Flavoured) - 1:3.5 ratio = 140 mls of milk.