How much ml coffee is 1 shot espresso? What does double shot mean by espresso?

In a coffee shop, you may hear an order like, "give me a shot, please."

Shot? Is it something new?

In a bar, the word shot refers to a small glass of spirits, and the word was popular in the mid-20th century, when "shot" meant that the store filled it with an ounce glass (shot glass), and the guests drank it quickly and left, so to speak, to drink the alcohol faster and cheaply.

When shot is put into a coffee shop, it is espresso with a similar effect. "A shot" means an espresso. Espresso was also designed to be fast, cheap and caffeinated.

How much is a shot? As mentioned earlier, a shot cup is a cup about 1 ounce in size, which is about the capacity of a 30ml. So a shot actually means about a cup of 30ml espresso.

But the shot in coffee does not simply refer to the capacity of the coffee liquid. For a long time, a shot refers to the standard extraction formula at the time-7g coffee powder to extract 30ml espresso. Another word often heard in coffee shops is "Double shot", which means double espresso-14g coffee powder extracted from 60ml espresso. The Double shot is made by using a double powder bowl (now our commonly used powder bowl), and then using a shunt handle to split the coffee liquid in two, using two shot cups. At that time, there was no small scale to weigh the coffee liquid, which was determined entirely by the capacity.

Now, it seems that this method has a very big error, because the volume of coffee oil is not equal to the weight, so if the volume is used as the standard, the fat-rich espresso will be relatively less than the oil thinner. Therefore, now the extraction of espresso is based on the liquid weight. How much is 1 shot now? Nowadays, coffee shops generally use double powder bowls as standard products. The single powder bowl almost disappeared. And the proportion of espresso extracted is also shrinking. For example, in the past, a unit of espresso was 7g powder to extract 30ml, but now a unit of espresso is 16g powder to extract 32g (about 45ml) of coffee liquid.

In this way, we are in a very awkward situation. If one portion of a single powder bowl is "1 shot", then the double powder bowl used for production now is Double shot. In terms of the amount of coffee liquid, if the espresso extracted by two powder bowls is Double shot, then if the guest orders 1 shot, the espresso liquid is about 22ml, which is even less on the already small cup.

So, in this case, the coffee shop will take the espresso extracted by two powder bowls as a shot, and if the guest orders Double shot, it will be two espresso extracted by double powder bowls.