Ordered a double shot of espresso and you think it’s still not enough? How big should a double espresso actually be? Here’s what you want to know?
A double shot of espresso weighs around 2 fl. Oz. Or 60 grams in most coffee shops. Small variations are always possible. A double espresso is simply twice the amount of a single shot of espresso. Starbucks is an exception. Their double espresso (Doppio) only measures 1.5 fl. Oz./44.4 grams.
Let’s dive a little deeper into the details of espresso sizes and if a double espresso is enough caffeine to get you fueled for the day.
How Many Ounces Is a Double Shot Of Espresso?
The average size of a double shot of espresso is two fluid ounces. That is twice the amount of a single shot which is around 1 fluid ounce.
Different coffee shops will use different measurements but 95% of espresso shots (outside of Starbucks) will weigh about 25-30 grams which is right around a single fluid ounce. A double shot should simply be twice that amount.
Two fluid ounce in a double shot is the standard in most of the coffee world. Classic Italian espresso is slightly less than one fluid ounce (0.85-0.95 to be exact.) But in most places outside of Italy a single espresso is one fluid ounce and a double is two fluid ounces.
The exception is Starbucks. A Starbucks double shot (Doppio) only measures 1.5 fl. Oz. While that is still double the single (Solo), It’s significantly less than standard and still less than the Italian standard. Why is that? I’m not sure but if I were to speculate, I’d say their single is so small that everyone will pay for the double anyways.
While we’re talking about fluid ounces here, most baristas will measure the weight of the liquid in the cup. The volume is not a good indicator since espresso often has crema (coffee foam) on top. And foam isn’t always the same weight per volume. So by just looking at the cup, you don’t know how much water was pushed through the grounds. A 3 ml difference is very hard to spot by eye, especially if it’s covered with foam, but is a 10% difference in weight if you were aiming for 30 ml. That 10% is significant and can lead to a very different tasting espresso.
How Many Grams Is a Double Shot Of Espresso?
Fluid ounces are not your cup of tea? (Pun intended) Here you go in grams. A fluid ounce is 30 grams. Actually 29.57 grams to be exact but everyone rounds that up to 30 for espresso. That means a double shot of espresso weighs 60 grams.
Of course there can always be small differences in shot size since most espresso machines have a pump that has to be stopped by hand. That means there can be small differences in every shot. However, a large percentage of double shots of espresso from a coffee shop will be in the 55-65 gram range.
As said above, Starbucks is an exception here. A single shot of espresso at Starbucks only measures 22.2 grams on average and a double shot (Doppio) measures 44.4 grams. That means to get an amount close to a double espresso from most other coffee shops, you’ll actually have to order a triple (66.6 grams).
Grams are a much better indicator of the size of your cup of espresso than milliliters. If you were to count in milliliters you have the problem of also counting the crema on top which is much lighter. The amount and thickness of crema depends on the type of beans and the brewing preparation so it’s not consistent enough to count the whole shot in ml. Grams and milliliters should be the same on the scale anyways.
Is a Double Espresso Just Two Singles?
A double espresso is called that because it’s double the standard serving. That means double the amount of coffee in the filter basket and double the amount of liquid in the cup. As you can see above, what that exact amount is can differ from place to place but it should always be double the amount of what the single serving is wherever you order.
You might be familiar with the splitter on an espresso machines. This is the little thing under the filter that splits the stream of coffee and deposits it in two different cups. With a double espresso you don’t use this and the full amount just goes into one cup. However, you still have to use double the coffee and water though.
Usually baristas will use more grounds in the basket and brew one double shot. However, in some cases a barista can brew two single shots and combine them. There are some minor differences in taste because of the difference in brewing. However, for the vast majority of people this is not noticeable at all.
Espresso machines often come with different size baskets that can be put in the portafilter. Using the right basket for the job is important since how full the basket is with grounds impacts the brewing process. Most good baskets will have an indicator etched in somewhere on it that indicates how much grams that basket is good for. Other times it just says small, medium, large or can even have a number of cups on it. In that case, you’ll just have to weight how much grounds it takes for the basket to be full.
How Much Caffeine Is In A Double Espresso?
A double shot of espresso will usually have 125-160 mg of caffeine depending on the beans and brewing methods. However, you can have espresso that is outside that range because of different factors.
An 8oz cup of brewed coffee contains about 100 mg of caffeine but it can vary quite a bit from 60 to 120mg.
First you should understand that coffee beans are a natural product. Different types of beans grown in different places with different methods will have different amounts of caffeine in them. Robusta has almost twice the amount of caffeine as Arabica for example. But coffees grown at higher altitudes have less caffeine than that same coffee tree at a lower altitude.
Many people think that the roast level has something to do with the caffeine content but that’s not the case. The amount of caffeine in the bean stays the same whether it’s a dark or light roast. However, darker roasts are easier to extract. That means it’s easier to get all the caffeine from a darker roasted bean than a lighter roasted bean. However, with proper brewing methods that are adapted to the roast level, it shouldn’t matter much.
Then there is the actual brewing. Some coffeeshops/baristas will use more coffee grounds than the next one. Of course in more grounds there is more caffeine.