Complete guide to Coffee Caffeine Content (Which has most?)

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Johny Morrisson


✓ Fact Checked

♡ Written by Humans for Humans

You probably are here because you are addicted to coffee, and you know what makes coffee addictive? Yes! It’s the caffeine content present inside the coffee beans.

According to studies, there are several benefits of caffeine. To name a few, it can improve your short-term memory, make you active, reduce fatigue, and help you lose weight.

Coffee is the most commonly consumed and one of the healthiest sources of caffeine.

But as we know, the famous proverb “Excess of everything is bad” caffeine also has some cons if consumed in excess.

And that’s why many people are concerned about how much caffeine is in the cup of their coffee.

How much caffeine in a cup of coffee?

A Regular 8 oz cup of coffee contains almost 80-120 mg of caffeine. However, the caffeine content mainly depends on factors like the variety of coffee beans, the amount of beans you use, the roast style, and the brewing method.

Coffee Caffeine content Comparison for different brewing methods and drinks

I have conducted research for 12 different most famous types of coffee drinks and brewing methods i-e Espresso, Drip coffee, Americano, long black, French Press, Latte, Cappuccino, Decaffeinated coffee, Cold Brew, Pour Over, Instant coffee, and Turkish coffee.

Coffee Caffeine Content Chart
Coffee Caffeine Content Chart
Drink typeCaffeine per servingSize of cupCaffeine per oz
Espresso (single shot)60 – 721-1.25 oz60 – 70
Espresso (double shot)120 – 1332-2.25 oz60 – 70
Drip coffee65 – 1208 oz8 – 15
Americano ( made with double-shot Espresso )120 – 1338 oz15 – 17
long black  ( made with double-shot Espresso )120 – 1336 oz20 – 22
French Press100 – 1378 oz 13 – 17
Latte  ( made with double-shot Espresso )120 – 13312 oz10 – 11
Cappuccino ( made with single-shot Espresso )60 – 726 oz12 – 14
Decaffeinated coffee2 – 38 oz0.25 – 0.37
Cold Brew197- 21316 oz12 – 13
Pour Over90 – 1608 oz12 – 20
Instant coffee60 – 808 oz8 – 10
Turkish Coffee150 – 1652 oz75 – 85
Caffeine content table for different types of coffee (Data source: National Coffee Association NCA, USDA Food Data Central)

Espresso Caffeine Content

Espresso is a coffee brewing method in which a pressurized hot stream of water is passed over fine coffee grounds. Espresso has the most caffeine per ounce (around 60 to 70 mg).

Drip Coffee Caffeine Content

Drip coffee machines work by dripping hot water over coarse coffee grounds in a filter. This results in a longer contact time between the water and grounds than in espresso machines but without the use of pressure. An 8 oz cup of drip coffee contains more caffeine than a single shot of espresso, which is around 65 – 120 mg.

Americano Caffeine Content

Americano is usually prepared by pouring 4 to 6 ounces of water over a freshly brewed double shot of espresso. So, it has the same caffeine as the double shot (120-133 mg)

Long Black Caffeine Content

Americano and Long Black are almost the same coffee drinks. In Americano, the water is poured over an Espresso shot, while in Long Black, espresso is poured over hot water.

French Press Caffeine Content

French Press is a unique manual coffee brewing method in which water is allowed to steep through coarse grounds for 4 to 6 minutes. An 8 oz cup of French Press can contain 100 – 137 oz of caffeine depending on steeping time and the type of coffee beans.

Latte and Cappuccino Caffeine Content

Latte and Cappuccino are similar drinks; both have a layer of espresso shot at the base and layers of steamed milk and foam at the top. The only difference is Cappuccino has a 1:1 of milk and Espresso while Latte has 2:1 of milk and espresso. As Cappuccino is denser, it has more caffeine content per ounce.

Decaffeinated Coffee Caffeine Content

In Decaf Coffee, 97% of the Caffeine is eliminated from coffee beans using organic solvents and carbon dioxide. Decaffeinated coffee beans will still have a small amount of caffeine, around 0.25-0.37 ounces.

Cold Brew Caffeine Content

Cold brew coffee is brewed at room temperature for an extended period of more than 10 to 12 hours. It has smooth, less bitter, and chocolaty flavors. The usual serving size of cold brew is 16 oz which has a high amount of caffeine, up to 197-213 mg per serving.

Pour-over coffee Caffeine Content

Pour coffee is a type of drip coffee prepared manually without any machine. Typically, the brewing process in a pour-over method is longer; that’s why it has more flavors and caffeine than coffee prepared through drip coffee machines.

Instant Coffee Caffeine Content

Instant coffee is made by brewing regular coffee beans in large batches and then concentrating and condensing the brewed coffee into small granules. These granules can then be quickly dissolved in water or milk to make a cup of coffee. A typical 8-ounce cup of instant coffee can contain up to 60 to 80 mg of caffeine.

Turkish Coffee Caffeine Content

Turkish coffee is made in Cezve by dissolving fine coffee grounds into water and milk. This is an unfiltered type of coffee drink; that’s why it has the highest caffeine content, up to 165 mg of caffeine per serving.

how to determine caffeine content in coffee?

Determining the exact caffeine content in your cup of coffee with precision is only possible with a high-tech lab and certainly not feasible for the average person.

Caffeine is an organic compound that is difficult to extract and isolate without specialized equipment. Achieving 100% pure caffeine without any impurities is a complex task that typically requires expensive lab technology.

Method 1:

For a rough estimation of caffeine levels, there are some practical approaches. Caffeine testing strips are available, and you can dip them into your coffee to get a basic idea of its caffeine content.

These strips usually have two lines, marked as D and C. If your beverage is decaffeinated, it will only reach the D line, while caffeinated beverages will surpass it.

This method is useful for telling whether the coffee is decaffeinated or not

Method 2:

Another easy method is using coffee-to-caffeine ratios: as a general guideline, multiply the weight of the dry coffee used by 0.01 to get the caffeine content in mg. For example, 20 grams of coffee would contain around 200 mg of caffeine.

It is important to note that coffee extraction can vary, with weak extractions yielding around 0.6% caffeine by weight and stronger extractions approaching 1% caffeine content.

While these methods will not provide pinpoint accuracy, they can give you a reasonable estimate of the caffeine levels in your coffee.

How much caffeine in a coffee bean | Arabica vs Robusta

According to research, most coffee beans have almost 10-12 mg/g of caffeine. And there are 6 to 7 beans in a gram, so there are 1.4-2 mg of caffeine in a single coffee bean.

Robusta coffee beans are richer in caffeine than Arabica beans.

On average, Robusta beans have 18-20 mg/g of caffeine, while Arabica beans have 8-12 mg/g of caffeine.

If you are a caffeine lover, you might be tempted to buy Robusta beans next time you go shopping. But Robusta beans are not liked by coffee enthusiasts all around the World.

The reason is too much bitter taste of these beans. Also, Robusta beans lack the balanced and complex flavors of coffee.

That’s why most people prefer Arabica beans over Robusta.

Robusta beans are mainly used for preparing coffee blends because 100% Robusta beans can be very unpleasant to drink.

Caffeine in coffee beans

What roast has the most caffeine | Dark Vs Medium Vs Light

Some people say there is more caffeine in dark roasts because they produce a stronger and more robust cup of coffee, while others may say that light roasts have more caffeine because the roasting process eliminates some caffeine.

Well, in actuality, both opinions are wrong. The caffeine in the coffee beans remains the same throughout the roasting process.

What roast has the most caffeine

During the roasting process, because of the high temperature, most of the moisture content evaporates from the coffee beans, and the beans lose their weight and expand in size.

That’s why lightly roasted coffee beans have a little more caffeine content on a volumetric basis than dark roast because the same volume will occupy fewer coffee beans of darker roast than lighter roast.

And on a mass basis, the dark roast will have a little more caffeine because the same mass of both roasts will have more beans for the darker roast.

But if you measure all different roasts, bean to bean, there will be no difference in the amount of caffeine.

So, if you want to have more caffeine, there is one simple rule “Add more coffee beans to your cup”.

Does Milk Reduce the Caffeine in Coffee?

Nope, adding milk to your coffee won’t reduce the actual caffeine content! The amount of caffeine is solely based on the coffee brewing process and beans.

When you add milk to your coffee, you are diluting the beverage, but the total caffeine content in the drink remains relatively constant.

However, some studies show milk can slow caffeine absorption slightly. The proteins in milk may bind with caffeine and delay how quickly it reaches your bloodstream after drinking.

Milk is added to coffee primarily for its creaminess and flavor, and also to reduce the intensity of the brew. This makes it a popular choice for people who prefer a milder taste without sacrificing the pleasure of their coffee.

milk in Coffee

How much caffeine is too much?

For healthy adults, 400 mg of caffeine is considered safe; that is four regular 8 oz cups of drip coffee or three double shots of espresso.

400 mg of caffeine is only safe for healthy adults; that amount is not safe for teens or young children.

Pregnant or breastfeeding women should also limit their caffeine usage to 200 mg per day.

There are many ways caffeine can be good for you. Such as the caffeine:

  • Improves the energy level
  • Reduces fatigue
  • Improves short-term memory
  • Increases the health of the brain
  • Can lower the risk of diabetes
  • Helps in weight loss
  • Helps in fighting depression

But as we all know, “excess of everything is bad”. If taken in excess, caffeine can cause the following problems:

  • Insomnia or difficulty in sleeping
  • Anxiety
  • Dehydration
  • Blood pressure
  • Addiction or dependency
  • Irritation in stomach

If you are facing any of the symptoms above, you should immediately cut down on the amount of coffee you drink daily. Or, if you can’t live without coffee, you should try decaffeinated coffee beans.

FAQs

Is 200 mg of caffeine a lot?

Healthy adults can safely consume up to 400 mg of caffeine in a day. However, teenagers and pregnant women should avoid taking that much caffeine and limit their caffeine intake to 200 mg per day.

Does tea have a Higher caffeine Content than coffee?

While tea leaves (3-4%) have a higher caffeine content than unbrewed coffee beans (1.1–1.5%), a brewed cup of coffee has more caffeine than a brewed cup of tea. This is because the coffee brewing process is longer and uses hotter water, which extracts more caffeine from the beans. Additionally, tea leaves do not release all of their caffeine during the brewing process.

How long does caffeine stay in your system?

The level of caffeine peaks in your body one hour after having it and remains at the same level for 4-6 hours. It takes almost 10 to 12 hours to eliminate all the caffeine content from the body.
That’s why it is not recommended to have caffeine-based drinks after the evening as it can cause sleeping problems.

Is espresso stronger than regular coffee?

While a single shot of espresso contains less caffeine than a regular 8 oz cup of drip coffee, espresso has a higher caffeine concentration per ounce. This is because espresso is made by forcing hot water through finely-ground coffee beans, which extract more caffeine.

Which coffee has the Least caffeine?

Decaf coffee has the least amount of caffeine. Around 97.7% of the caffeine is removed from the coffee beans during the decaffeination process.

Which coffee has the most caffeine?

Turkish coffee and Espresso are the most concentrated coffee brewing methods and have the highest amount of caffeine.
If you want to drink highly caffeinated coffee then use Robusta beans.

Is caffeine a drug?

Yes, caffeine is a drug. It is a natural stimulant that affects the central nervous system, making us feel more alert and awake.

Does Coffee lose its caffeine content over time?

While coffee can go stale, the caffeine content doesn’t change or degrade over time. However, the flavor and overall quality will deteriorate faster if the coffee isn’t stored properly.

Does Caffeine in Coffee make you Poop?

Yes, caffeine in coffee can have a mild laxative effect on some people. Coffee promotes bowel motility and gastric emptying, which quickens digestion and makes the urge to poop.

Other Interesting Reads:

Johny Morrison is a founder and content creator at Coffee About, bringing passion and expertise to the world of coffee.

You can often find him sipping a single-origin pour-over, rich French press, or pulling espresso shots at home. Johny loves full-bodied dark roasts – the bolder, the better!

As a former barista, he takes coffee equipment seriously and enjoys experimenting with the latest gear. When he’s not brewing or blogging, Johny is scouting local cafes for his next coffee fix.