how many fluid oz is a single shot espresso
A shot of espresso is considered to be one (fluid) ounce, while a double shot is two (fluid) ounces. A fluid ounce is 30 mL (as opposed to an ounce by weight being 28 g). This volume refers to the espresso shot volume (water) that gets passed through the espresso. The weight of the coffee required for a single shot is typically 7 grams for a single shot, and 14 grams for a double shot.