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How Much Caffeine In An Espresso Shot? (You Must Know This!)

  • 6 min read

Espresso is well-loved for its intense, rich, flavorful taste and high caffeine levels. It's created by sending pressurized hot water through finely ground espresso beans. If you are curious about the caffeine content or its potential effects on your body, keep reading to find out more.

The exact caffeine content in an espresso shot can vary based on various factors; coffee bean type, the shot size, and the brewing method. Here is a detailed article that will discover the quantity of caffeine in an espresso shot, factors to consider when making Espresso, and the benefits of drinking Espresso.

What Is the Caffeine Content of an Espresso Shot?

Factors to Consider When Preparing a Shot of Espresso

Espresso is a potent beverage with a high caffeine content per ounce, and people drink Espresso

in various ways; single shots, double shots, and triple shots. Unfortunately, determining the exact caffeine content in a single espresso shot is difficult as the content varies with several factors discussed below.

A single espresso shot contains approximately 40-75 milligrams of the stimulant caffeine and about 63 milligrams of caffeine on average. A double shot of Espresso contains between 80- 150 milligrams of caffeine and about 125 milligrams on average. Most coffee shops serve a double shot of Espresso.

3 Shots of Espresso Caffeine Content

If a single shot of Espresso contains 63 milligrams of caffeine on average, three would typically contain 189 milligrams of caffeine. As mentioned earlier, the caffeine content can vary depending on various factors. However, too much caffeine can harm your health, so drink coffee and other caffeinated beverages in moderation.

Factors to Consider When Preparing a Shot of Espresso

What Is the Caffeine Content of an Espresso Shot

The average quantity of caffeine in a shot of espresso is approximately 63 mg. This is due to the following factors:

1. Coffee Bean Type

There are four common types of coffee beans; Robusta, Arabica, Liberica, and Excelsa. All four varieties have different tastes and caffeine content. While all four varieties can make espresso, Robusta beans are more commonly used. Caffeine levels in Robusta beans are higher than in Arabica beans. When you use this bean, your espresso, a regular cup of coffee, or any other coffee beverage will be more caffeinated.

2. Brewing Equipment

The type of equipment you use will impact your shots' final flavor, caffeine content, and consistency. Use a high-quality machine with temperature control capabilities and freshwater filters to get consistent results every time.

3. Brewing Method

The amount of caffeine in your espresso shot depends on the brewing temperature, time, and the number of beans you'll use. Brewing espresso at a higher temperature and for an extended period leads to a higher caffeine extraction from the beans.

A smaller grind size creates more surface area for higher caffeine extraction and similarly restricts water flow and thus creating an optimal environment for caffeine extraction. This will significantly raise the caffeine content naturally.

4. Shot size

The caffeine content of a standard 8-ounce cup of coffee is 95 mg on average. This serving size is larger than a 1.5-ounce espresso shot. People believe they get more caffeine than they do by drinking an entire cup of regular coffee because they get approximately 75 mg of caffeine in a small serving.

How Long Does It Take for Caffeine to Leave Your System?

Caffeine's duration in your system depends on several factors, including age, weight, gender, metabolic activity, liver function, and the quantity of caffeine consumed. Caffeine can remain in your body for up to 12 hours or longer, especially if you consume more or are sensitive to it.

On average, it takes about 5-6 hours for half of the caffeine consumed to be metabolized and wholly removed from your body. If you take a double shot of Espresso containing 120 mg of caffeine, your body will eliminate about 60 mg of caffeine after 5-6 hours.

Note: Avoid consuming it shortly before bedtime when you're sensitive to its effect because it can impact your sleep quality.

Benefits of Drinking Espresso

Taking Espresso can have certain benefits. They include:

1. Boosts energy and focus

The caffeine in Espresso significantly boosts mental focus and reduces fatigue. Thus, taking moderate Espresso allows you to stay active and efficient during the day.

2. High in antioxidants

Coffee beans contain antioxidants, which help to protect body cells against harm caused by damaging molecules known as free radicals. Espresso, a concentrated form of coffee, may have higher antioxidant levels than regular coffee.

3. Improves physical performance

Caffeine in Espresso can improve physical performance by enhancing endurance and decreasing muscle fatigue, making it a popular pre-workout drink among athletes.

4. Low in Calories

Espresso is an excellent option if you are searching for a low-calorie beverage. A single shot of Espresso contains only about five calories, making it an excellent choice for those watching their weight.

5. May reduce the risk of certain diseases

Research has shown that regular caffeine intake in Espresso may reduce one's likelihood of several chronic diseases, including type 2 diabetes, liver problems, and some types of cancer.

6. Improves Long-Term Memory

Drinking Espresso can improve your long-term memory. It helps your brain retain stored information and can also help you recall that information.

Effects of Drinking Espresso

Effects of Drinking Espresso

Drinking too much Espresso can have some adverse effects, including:

  • Espresso contains high levels of caffeine, which can disrupt sleep, resulting in insomnia.
  • Excessive espresso consumption can result in gastrointestinal issues such as acid reflux and heartburn.
  • Because Espresso has a diuretic effect, it can cause increased urination, leading to dehydration if not followed by adequate water intake.
  • Espresso can cause anxiety and nervousness, particularly in caffeine-sensitive individuals.


Different types of espressos contain varying amounts of caffeine. For instance, the classic Italian Espresso has about 50 mg of caffeine per shot. Besides, the amount of caffeine in Espresso depends on the type of coffee bean it has been brewed from, the brewing method, and the shot size. But remember, caffeine tolerance varies; some people might be more susceptible to its effects than others. Take caffeinated beverages in moderation.