How Much Caffeine In A Shot Espresso – Surprising Facts

Everyone can appreciate the rich flavors of espresso. You may know that a regular cup of coffee contains 100 mg of caffeine and numerous varieties. For example, a cup of espresso typically includes at least 50 milligrams per brew, and a shot of drip coffee can contain 200 milligrams of caffeine.

Determining the exact caffeine content of a regular cup of coffee or an espresso is complicated. In the following article, we will detailly provide information about how much caffeine is in a shot of espresso.

What Is Caffeine?

Caffeine is a naturally occurring stimulant in tea, coffee, and cacao plants. It stimulates the brain and central nervous system, allowing you to stay alert and prevent fatigue.

After consumption, caffeine is quickly absorbed from the gut into the bloodstream. It is then transported to the liver, where it is degraded into compounds that can affect the function of various organs. 

Caffeine inhibits adenosine’s effects. It is a kind of neurotransmitter that relaxes the brain and causes fatigue. Adenosine levels typically rise throughout the day, making you tired and want to sleep. 

Caffeine keeps you awake by binding to adenosine receptors in your brain but not activating them. This inhibits the effects of adenosine, resulting in less tiredness. 

Coffee Beans And Caffeine

This plant grows as a large evergreen shrub in tropical areas. Here are two coffee beans: Coffea arabica, also known as Arabica coffee, and Coffea canephora, also known as Robusta coffee. One thing to remember is that all coffees, including espresso, are made from coffee beans.

A single coffee bean contains approximately 6 milligrams of caffeine; however, the exact measurement depends on the variety of coffee used. Arabica coffee, for example, has about 12 milligrams of coffee per gram, whereas Robusta coffee has about 22 milligrams per gram. So espresso made with robusta beans is likely to contain more caffeine than espresso made from Arabica because Robusta beans have twice as much caffeine.

Espresso coffee in the US often uses Arabica beans to create a better flavor than the “Classic Italian” way (using Robusta beans, creating a thicker and richer crema). The famous Starbucks brand also uses this bean for its espresso.

By the way, many believe lighter-roasted coffee beans have more caffeine than darker-roasted coffee beans. This belief is not always true; dark roasted coffee beans contain more caffeine than lightly roasted coffee beans because the machine requires more beans.

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Caffeine In Espresso

Espresso is a concentrated coffee that forces hot water through finely-ground coffee under high pressure. The brewing process brings out the flavors of the coffee in espresso, resulting in a caffeinated beverage that is richer and bolder than regular coffee.

Caffeine levels in espresso drinks such as lattes and cappuccinos vary. Here are some caffeine levels in various espresso drinks:

  • Espresso, Single Shot: 29-100 mg (often around 75 mg)
  • Espresso, Double Shot (Doppio): 58-185 mg (usually around 150 mg)
  • Decaf Espresso, Single Shot: about 8 mg
  • Decaf Espresso, Double Shot (Doppio): about 16 mg

We frequently get asked about the caffeine content of a typical cup of espresso. Of course, the answer will depend on the mix and the number of particles used. To get more specific, compare the caffeine content of espresso drinks at popular coffee shops like Starbucks.

Espresso-Based Drinks

  • Single Shot: 75mg (Starbucks espresso is slightly more caffeinated than average)
  • Double Espresso: 150mg
  • Cappucino, Latte, Macchiato: 75mg for short or tall, 150mg for grande or venti (20% more in a lungo)
  • Mocha: 90mg for short or tall, 175 for grande, 180 for venti (due to extra caffeine in chocolate)
  • Flat White (with ristretto espresso): 90mg for short or tall, 130mg for grande or venti
  • Americano: 75mg for short, 150mg for tall, 225mg for grande, 300mg for venti

Standard Caffeine Content

  • Brewed Coffee: 96mg
  • Decaf Coffee: 2mg
  • Instant Coffee: 62mg 
  • Cold Brew Coffee: 100mg 
  • Super Coffee keto-friendly ready-to-drink coffee: 150mg
  • Super Coffee ready-to-drink espresso: 210mg
  • Black Tea: 47mg
  • Soda or Energy Drink: 20-30mg
  • Energy Shot: 200mg

Too Much Caffeine

Caffeine-containing beverages are consumed regularly by those who enjoy espresso and coffee. But what if your caffeine intake becomes excessive?

According to the FDA, you can consume up to 400 milligrams daily—roughly four or five small cups of coffee—without experiencing any adverse effects.

Even at low doses, caffeine can cause sensitivity in some people. It’s also important to understand that caffeine levels in coffee, tea, and other caffeine-containing beverages vary greatly. For example, caffeine levels in Starbucks coffee drinks range from 10 to 415 milligrams. Or else, espresso with a Keurig also has too much caffeine to wake up. 

Depending on the person and the amount of caffeine consumed, caffeine overdose symptoms can range from mild (flushed face) to extreme (death). Symptoms of caffeine overdose include dizziness, diarrhea, insomnia, headache, fever, irritability, or maybe death (very hardly). 

Which Type Of Espresso Has The Least Caffeine?

The coffee with the least caffeine is decaffeinated and at least 97 percent caffeine-free. A single espresso has the lowest caffeine content of any regular caffeinated coffee beverage. A single espresso contains 45 mg of caffeine, whereas a cup of drip filter coffee contains 95mg.

For more detail, a single ristretto shot of espresso made with 7 grams of dark roast. Use decaf coffee or a blend with Excelsa beans for a caffeine-free ristretto.

Because of how intense and bitter espresso coffee is, most people associate it with high caffeine content. So it may surprise you that espresso is the least caffeinated of all coffee beverages. Espresso, on the other hand, contains the least amount of caffeine due to its small size. A typical single espresso is only about 25ml in size (0.85fl oz). 

We can conclude: 

  • Because espresso is served in small quantities, it contains less caffeine than filter coffee in terms of beverage serving. 
  • However, due to its higher concentration, espresso contains significantly more caffeine than filter coffee in terms of volume.


To sum up, a shot of espresso often contains 75 mg, so feel free to consume them at nearby cafes if you’re a coffee addict or like to use them to stay awake. They calculated and researched drinks with the right caffeine index for consumers. Do not exceed 400 milligrams of caffeine a day. Before you begin drinking caffeinated beverages, find out if you are caffeine allergic or how much caffeine you can consume in a shot of espresso! I hope this article is helpful to everyone.

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