How Much Caffeine Does Coffee Contain? (Shocking)

Coffee often helps increase concentration and stimulate metabolism. It’s a part of our daily diet that helps us start our day energetically, but have you found out how much a cup of coffee contains caffeine? 

Knowing the exact amount of caffeine in your cup of coffee help in many ways, especially for people with health issues and habitual drinkers. You can enjoy your cup of joy as long as you don’t go overboard, and you can only know when it is too much if you know the amount of caffeine you are consuming daily. 

The answer to how much caffeine coffee contains depends upon the size of the cup, type of coffee, how coffee roasts and brews, and, most important, coffee beans. However, the available amount of caffeine in a cup of coffee you can expect is around 80 mg to 95 mg. 

According to Mayo Clinic, even the caffeine in coffee from the same coffee shop can be different, if the coffee beans are roasted differently. Similarly, this study based on the USDA database about caffeine content shows how caffeine amount can vary in a cup of coffee based on different factors. 

The analyzed result of the survey about the amount of caffeine in an 8-ounce cup is that flavored coffee can contain 48mg, whereas instant coffee can contain up to 27- 173mg depending on the brand you used. 

Also, the exciting thing is that some people consume decaf coffee, considering it caffeine-free. However, decaf coffee also has some caffeine in it. So if someone wants to cut down on caffeine completely, they need to be careful with decaf and other caffeinated products. 

What influences the amount of caffeine in coffee varies depending on different factors:

  • How coffee is brewed
  • Which coffee beans are used
  • How does coffee blend
  • The amount and size of coffee used

You don’t need to measure every ounce of caffeine you consume daily, but it will help cut down on this acidic stimulate. 

Keep reading to know more.

What Coffee Has the Highest Caffeine?

coffee being poured into coffee

Black Label by Devil Mountain Coffee Company has the highest amount of caffeine which has 1500mg in a 12-ounce cup of coffee. 

A trend in 2013 started by Death Wish Coffee became a race among brands to brew the most caffeinated coffee.

There are thousands of coffee brands that are in a race to develop different caffeine levels. Some commonly known brands like the Black Label, Tim Hortons, Nestle, and Starbucks make incredibly tasty pre-packed coffee. 

However, when it comes to the most caffeinated brewed coffee, Black Label has won the race. 

I wrote a separate article listing the strongest coffees ever and you can check it out if you’re interested, but here are some of the few that I have listed.

Black Label

The world’s winning with most caffeine in coffee is Black Label by Devil Moutain, with about 1,500mg of caffeine in a 12 oz serving. You should be highly cautious while consuming this one, but I suggest not drinking if you have high sensitivity to caffeine.

Very Strong Coffee  

Made in the UK, Very Strong Coffee, just as its names suggest has 1,350mg per 12 oz serving that makes a cup of 320 ml.

Very Strong is made of 100% Robusta coffee beans. Professional would call this one dangerous only try if you don’t get the lift from regular coffee and have good caffeine tolerance. 

High Voltage Coffee

High Voltage will give you 1,150 voltages of caffeine per serving, so only consumed it on your responsibility; according to Australian National Measurement Institute, High Voltage is Australia’s strongest coffee brand. Made with sourced beans, High Voltage is rich in flavor. However, the beans don’t taste as bitter as other high caffeinated coffees. 

Black Insomnia Coffee

With about 1,105 mg caffeine in a 12 oz cup, Black Insomnia Coffee is next on our list, as you might have guessed from the name that this one is best for night owls.

If you have worked at night, this one will kick in the right after sipping the cup down. 

The maker of Black Insomnia Coffee claims that the secret behind this dark content coffee is finely tuned roasting beans.

Biohazard Coffee

Biohazard Coffee contains 928mg per 12 ounces cup. This one is made of dark-roasted organic robusta beans. It has the aroma and a bit of nut, popcorn, tobacco, and chocolate taste. 

Even though this is the lowest on the list, 928mg of caffeine is still a lot and is way past the 400mg set limit of caffeine by the FDA. Coffees like these are only for someone with high sensitivity towards coffee beans.

Coffee is rich in antioxidants that have several benefits for health. However, coffee with such high caffeine amounts is not for everyone.

People who can feel anxiety, heart palpitations, restlessness, and insomnia with just a regular cup of coffee should stay away from the coffee mentioned above that comes with an alert sign only suitable for people with good sensitivity toward coffee beans.

What Has More Caffeine: Coffee or Tea?

a cup of coffee next to a cup of tea
A cup of coffee and tea

Coffee has more caffeine than tea, but if we look at the flip side of the picture, tea leaves usually contain more caffeine than coffee beans, isn’t that interesting?

All types of tea came from the Camellia Sinensis plant, and all kinds of coffee came from Arabica and the Robusta plants. But how does each type end up with a different amount of caffeine?

This change is influenced by how tea leaves and coffee beans are treated after they are picked. The more processed the coffee or tea, the stronger the caffeine amount it will have.

Coffee on one side is brewed at high temperatures, which makes it more saturated than tea. On the other side, tea does have more caffeine in leaves, but brewing it with more water reduces the amount of caffeine stimulation in it.

Matcha tea has high caffeine, and one cup of coffee has as much as twice caffeine as matcha tea.

A cup of Matcha tea (8-ounce) contains 64mg of caffeine, whereas a typical cup of coffee about 8-ounce contain 80-100mg of caffeine according to FDA,

The wise thing is to read the label properly before you buy coffee or tea. However, you will be surprised to know that many brands of coffee and tea packaging don’t even mention the caffeine amount on the label. It would be best if you do your research before you buy something from the shelf of the local supermarket. 

You may also know that another primary caffeine source is energy drinks. You need to look at the label before you consume the Red Bulls or other famous energy drinks. Most energy drinks don’t even mention the exact amount of caffeine on the label, but you will see the warning. 

Coffee, tea, or any other caffeine-containing food or drink is healthy as long you take it in the recommended amount prescribed by professionals. 

Pregnant women, children, older people, or people with specific health issues such as headache, insomnia, iron deficiency, stomach ache needs to be careful while consuming these beverages. 

Here is a table of the most common types of coffee and teas with the caffeine amount we drink daily:

Coffee type (8 oz/ 237ml)Caffeine amount 
Flavored Coffee48mg
Regular brewed coffee75 – 165mg
Latte63 – 175mg
Instant 27-173mg
Espresso 500 mg (47 in about 1 once)
Brewed (Decaff)2- 12mg
Espresso (Decaff)0-15mg 
Instant (Decaff)27-173mg
Types of Tea ( 8oz 237ml)Caffeine (mg)
Black Brewed 47mg
Black Decaf2mg
Green Tea 28mg
Ready-to-drink Tea19mg

Caffeine Pros and Cons

Coffee is undoubtedly a healthy beverage that boosts mood, mental, physical health, and metabolism but at the same time has many unpleasant and dangerous side effects.

How caffeine affects people depends upon their sensitivity toward it.

Also, genes play a role in the individual tolerance levels of caffeine. Some can gulp down the whole 5-6 cups of coffee and still feel lazy and sleepy while others can’t sleep at night if they just had 1 cup of coffee in the morning. 

Let’s look into some common pros and cons of drinking coffee daily.


  1. Caffeine prevents unnecessary weight gain and is a must drink for those who are trying to lose weight.
  1. Caffeine is known to create alertness and increase focus that improves speed, reasoning, and mental awareness. 
  1. Many studies have found similar results of how caffeine help prevent Alzheimer’s disease and Parkinson’s disease.
  1. Caffeine contains antioxidants that increase brain function and also help with physical sports performance. 
  1. Caffeine help precludes the risk of eye disorder by reducing the formation of cataracts.


  1. Coffee increases anxiety by releasing an adrenaline hormone to create alertness, but high doses make you feel nervous and anxious. 
  1. A large intake of caffeinated coffee can cause insomnia, especially in the elderly.
  1. Caffeine is known to cause many digestive issues, such as diarrhea, GERD, nausea, or upset stomach.
  1. Caffeine can cause dental problems and can leave unpleasant stains on your teeth. 
  1. Large intake of caffeine can lead to heart palpitation, high blood pressure, or headaches.

Final Say

The amount of caffeine in coffee depends on the cup and type of coffee, but generally coffee contains 80-100 mg of caffeine. However, some coffee brands have a caffeine content of 1500mg, which is extremely dangerous, especially for people who are sensitive to caffeine.

Everyone has different tolerance toward caffeine, and that’s why recommending the same intake for everyone would be wrong. You need to look into your lifestyle and health and then choose the safest amount that best suits your routine.

Watch the video to know more about the caffeine amount in coffee.

Those who don’t want to be too calculative can follow the FDA’s recommended safe daily intake of 400mg for healthy people. But people who are sensitive to caffeine should take about 250mg, and pregnant woman needs to be careful with their intake. 

Similarly, if someone has insomnia and finds it hard to sleep at night, they should consider cutting the coffee from their lives until they recover their healthy sleep pattern.

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Matt Marshall

As I learn more and more about coffee and coffee products I want to share all my learnings with you here on this website. I hope you find my articles useful and entertaining to read.

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