If you love espresso or are just starting to explore the world of coffee, one of the most common questions you may ask is: how many grams of coffee are in an espresso? At first, this sounds like a simple question, but the real answer depends on several factors such as espresso style, brewing method, and personal preference.
In this article, I’ll explain everything you need to know, from standard measurements to modern espresso trends, so you can make better espresso at home or understand what you’re drinking at a café.
1. The Standard Amount of Coffee in an Espresso
Traditionally, a single shot of espresso uses 7–9 grams of ground coffee. This measurement comes from classic Italian espresso standards, which were established to create a small, intense, and balanced cup of coffee. When brewed correctly, these 7–9 grams of coffee produce about 25–30 ml of liquid espresso.
However, it’s important to know that in many countries today, especially outside Italy, espresso recipes have evolved. Many cafés no longer serve single shots and instead focus on double shots, which use more coffee and deliver a richer flavor.
2. How Many Grams Are in a Double Espresso?
A double espresso, often called a doppio, typically uses 16–20 grams of ground coffee. This is now the most common espresso size in specialty coffee shops around the world. With this amount of coffee, the espresso usually yields 36–45 ml of liquid, depending on the recipe and extraction style.
Many baristas prefer double shots because they provide better balance, more sweetness, and a fuller body compared to traditional single shots. If you order an espresso in many modern cafés, you are very likely getting a double shot, even if it’s not clearly stated on the menu.
3. Why the Amount of Coffee Matters
The number of grams of coffee used in an espresso directly affects the taste, strength, and texture of the drink. Using too little coffee can result in a weak or sour espresso, while using too much can make it bitter and harsh.
The coffee dose also influences how water flows through the coffee puck. Espresso is brewed under high pressure, and even a small change in coffee weight can significantly alter extraction. That’s why professional baristas measure coffee in grams instead of using scoops or volume-based tools.
4. Espresso Ratios Explained
In espresso brewing, the amount of coffee is often discussed together with the brew ratio. A brew ratio compares the weight of dry coffee to the weight of the final liquid espresso. The most common ratio is 1:2.
For example:
18 grams of coffee in
36 grams of espresso out
This ratio is popular because it produces a balanced cup with good sweetness and clarity. Some people prefer a slightly shorter ratio (1:1.5) for a stronger, more intense espresso, while others enjoy a longer ratio (1:2.5) for a lighter and smoother taste.
5. Traditional vs Modern Espresso Styles
In traditional Italian espresso culture, the focus is on small doses and quick consumption. A classic Italian espresso uses 7 grams of coffee, brewed fast, and enjoyed in just a few sips. The flavor is bold, strong, and often slightly bitter, especially when using darker roasted beans.
Modern espresso, especially in specialty coffee, often uses larger doses, lighter roasts, and more precise brewing techniques. With 18–20 grams of coffee, modern espresso aims to highlight sweetness, acidity, and unique flavor notes such as fruit, chocolate, or caramel.
Neither style is better than the other—it simply depends on what kind of espresso you enjoy.
6. Does Coffee Bean Type Affect the Amount?
The type of coffee bean does not change the recommended gram amount, but it can affect how the espresso tastes at a given dose. For example, lighter roasts often benefit from slightly higher doses or longer extraction times, while darker roasts may taste better with smaller doses to avoid bitterness.
Arabica beans are most commonly used for espresso due to their smooth and complex flavors. Robusta beans, which contain more caffeine and bitterness, are sometimes blended in traditional espresso for extra crema and strength. When using Robusta-heavy blends, some baristas reduce the coffee dose slightly.
7. How to Measure Coffee for Espresso at Home
If you want to make espresso at home, using a digital scale is the best way to measure coffee accurately. Measuring by weight ensures consistency and helps you adjust your recipe easily.
A good starting point for home espresso is:
18 grams of ground coffee
36 grams of liquid espresso
Extraction time of about 25–30 seconds
From there, you can adjust the dose slightly to match your taste. If your espresso tastes sour, you may need more coffee or a finer grind. If it tastes bitter, you may need less coffee or a coarser grind.
Final Thoughts
So, how many grams of coffee are in an espresso? The short answer is 7–9 grams for a single espresso and 16–20 grams for a double espresso. Understanding espresso measurements helps you appreciate what’s in your cup and gives you more control when brewing at home.
