10 Most Caffeinated Coffee in the World, Ranked 2024

Why look for caffeine?

Some people like highly caffeinated coffee for several reasons:

1. Energy boost: We need a lot of energy immediately to get through a long and difficult day, whether it is work, study or intense physical activity.

2. Enhanced alertness and focus: The high caffeine content helps us stay sharp and concentrated, improving work efficiency and athletic performance.

3. Dependency: Those who have developed a high caffeine tolerance over time rely on the strong dose to feel normal and functional.

4. Taste preference: Despite the high caffeine, they might enjoy the specific flavor and boldness that these coffees often offer.

5. Quick fix for fatigue: It provides a rapid solution to overcome feelings of tiredness or sluggishness.

6. Convenience: In some cases, highly caffeinated coffee might be more readily available or accessible compared to other energy-boosting options.

Are you looking for the coffee with the highest caffeine content? Well, you’ve come to the right place. I researched and tested the caffeine content of different brands, and here’s the answer!

Which coffee brands have the most caffeine?

Guide to the strongest coffee:

• #1. Devil Mountain Coffee Black Label -1555mg per 12oz 

• #2. Very Strong Coffee - 1350 mg per 12oz

• #3. Contact Coffee Co. Red On! Coffee - 1293 mg per 12oz

• #4. High Voltage Coffee Co. - 1150mg per 12oz

• #5. Black Insomnia Coffee - 1105mg per 12oz

• #6. Biohazard Coffee - 928mg per 12oz 

• #7. Death Wish Coffee - 728mg per 12oz

• #8. Sons of Amazon Coffee - 660mg per 12oz

• #9. Killer Coffee Industrial Strength - 645mg per 12oz

• #10. Cannonball Coffee Maximum Charge - 600mg per 12oz

Read on to learn more about the caffeine content in different coffees!

Real reviews of the strongest coffees and how they rank

It is important to note that the coffees presented and detailed in this article contain alarmingly high levels of caffeine, almost exceeding 600 mg per cup.

Generally speaking, the recommended and relatively safe value of daily coffee intake for most adults is within 400 mg. However, this threshold is not a one-size-fits-all rule. Actual tolerance and appropriate intake will vary greatly between people with different physiques, metabolic rates, and overall health conditions.

If you have a strong determination and willingness to accept a challenge, you may consider purchasing the coffee products listed below.

#1. Devil Mountain Coffee Black Label 

• Caffeine: 1555mg per 12oz 

($19.99  FROM Devil Mountain)

($19.99  FROM Amazon)

Black Label is an extremely caffeinated coffee bean blend from Devil Mountain Coffee Company.

At 1,555 mg of caffeine per 12 ounce serving, Devil Mountain Black Label is the highest caffeinated coffee on this list, almost double the popular Death Wish coffee.

On a daily basis, a 12 ounce cup of this coffee has six times more caffeine than a regular cup of coffee and more than three times the amount doctors recommend for a day.

If you crave caffeine on sleepy weekday mornings, Devil Mountain Black Label might be the coffee to satisfy your cravings. But be careful. The punch of this coffee can actually be dangerous if you have trouble controlling your jitters.

Despite the higher caffeine content, the brand promises that their coffee tastes strong and smooth. This is because their beans are grown at high altitudes, so your coffee tastes great.

I can attest to this, having tasted this coffee, it delivers a huge energy boost and a rich flavor.

This coffee is definitely stronger than other coffees like Death Wish. When I finished this coffee, my heart was pounding and I was instantly energized.

As for the taste, the Black Label is a bit softer than the Biohazard flavor. The coffee tastes nice, mild and smooth.

As for the price, it's not expensive, but Devil Mountain Black Label is not a coffee you'll find in stores, it's only sold on the Devil Mountain website and Amazon for less than $20 per bag.

#2. Very Strong Coffee

• Caffeine: 1350 mg per 12oz

($20 FROM Very Strong Coffee)

($20 FROM Amazon)

Very Strong Coffee is the strongest coffee in the UK, with 1,350mg of caffeine per cup, 249mg more than the next strongest coffee.

The story of the 'Very Strong Coffee' brand began with a passion to provide an intense and effective energy solution for people with busy lives.

Founders James and Simon worked in operations on airships. Falling asleep on the job was not a good thing. The problem was that the coffee they drank did not produce the expected energizing effect. Their eyelids remained droopy and their spirits were sluggish.

They found a Vietnamese Robusta coffee with a very high caffeine content. It was then processed using a unique wet polishing method at the final stage of production to remove the silvery outer skin of the coffee bean, allowing all the sweet and savory flavors to flow out, not just the caffeine.

After countless experiments and tastings, they perfected the recipe for 'Very Strong Coffee'. Their commitment to quality and efficacy won word-of-mouth among coffee lovers who are busy and need an extra boost to get through their busy days.

Very Strong Coffee lives up to its name, with a deep roast that delivers a rich, powerful and full-bodied taste that is not overly bitter and wakes you up with a rich dark chocolate aroma.

#3. Contact Coffee Co. Red On! Coffee

• Caffeine: 1293 mg per 12oz

(£8.99 FROM Contact Coffee Co.)

With 1,293 mg of caffeine per 12 oz brew, Red On! coffee is one of the strongest coffee brands in the world.

This British brand was born out of two Royal Marines' frustration with poor quality freeze-dried coffee, and the product is field-tested in a variety of environments to ensure "durability" and great taste.

It is sourced from a single origin 100% specialty Robusta coffee from Bhadra Estate in southwestern India. This coffee is very high in caffeine, so it's not for the faint of heart.

This coffee has a balanced taste with just the right amount of sweetness and a balanced acidity.

#4. High Voltage Coffee Co.

• Caffeine: 1150mg per 12oz

High Voltage Coffee is an Australian family owned and operated coffee brand founded in 2018.

It is Australia's number one strong coffee, carefully crafted from the strongest premium coffee beans. Its team of roasters have been in the industry for over 20 years and have perfected a unique roasting technique. The coffee is roasted from medium to dark, with a unique taste that is smooth, mellow and rich, without the bitterness common in highly caffeinated coffee.

The brand is passionate about coffee quality and regularly tests its products to ensure it meets the highest standards. Its coffee is tested by relevant Australian agencies and contains 1150 mg of caffeine per cup, making it the strongest coffee currently available in Australia.

High Voltage Coffee's coffee beans are ethically and sustainably sourced from Rainforest Alliance farmers, roasted in Australia, 100% natural, with no artificial additives or ingredients, guaranteed fresh, and delivered within a few days of roasting, but only available in Australia.

Whether it's a morning or evening energy boost or a delicious espresso experience, it can satisfy the needs and work faster than sugar-free energy drinks.

#5. Black Insomnia Coffee

• Caffeine: 1105mg per 12oz

($19.99  FROM Walmart - Get Up To 4% Cash Back)

Black Insomnia Coffee is a coffee brand founded in 2016 by South African coffee lover Sean Kristafor.

The main feature of Black Insomnia Coffee is its extremely high caffeine content. Just one 12-ounce cup of coffee contains 1105 mg of caffeine, far exceeding the recommended daily intake of 400 mg.

It achieves such a high caffeine content by using coffee beans of the Robusta variety and a unique roasting process, although the details of the roasting process are kept secret by the founder.

The brand was initially launched in select coffee shops in Cape Town, South Africa, and quickly expanded to 22 countries around the world. It is also available on Amazon US, with impressive monthly sales that are difficult to meet demand.

To prove its potency, samples were sent to a laboratory in Switzerland, which found that the caffeine content was 17.5 grams per kilogram, which is better than other strong coffees such as Death Wish.

This coffee was a little smoother than I expected and it was delicious! But reviews of Black Insomnia Coffee are polarizing.

Some will praise its high caffeine content, saying it provides unparalleled energy that lasts a long time and helps them stay alert and productive when they need it most.

Others, however, will be critical of it because such high levels of caffeine may cause health problems. They will worry about potential side effects such as palpitations, insomnia, and nervousness.

Some will also comment on its taste, noting that while it has a high caffeine content, the flavor may not be as delicate or complex as other specialty coffees.

If you're up for a challenge, buy a bag and take it home to give your own review!

#6. Biohazard Coffee

• Caffeine: 928mg per 12oz 

($19.99  FROM Walmart - Get Up To 4% Cash Back)

Biohazard Coffee is widely considered the strongest coffee in the world. At 928 milligrams of caffeine per 12-ounce serving, it’s more than double the recommended daily dose and much higher than most energy drinks.

Launched in 2016, Biohazard Coffee has become the strongest coffee on the market, with a caffeine level that’s barely safe to drink.

The FDA recommends that adults without high risk factors, such as heart disease, consume up to 400 milligrams of caffeine per day, noting that a quick intake of about 1,200 milligrams is enough to trigger symptoms of toxicity, such as seizures.

Drinking Biohazard Coffee is definitely a dangerous beverage, especially if your body isn’t used to caffeine. But Biohazard Coffee’s founder, Yonatan Pinhasov, is a former biochemist who wanted to create a coffee that was more stimulating than regular coffee.

Biohazard Coffee’s high caffeine content comes from the Robusta beans used in its blend. Robusta beans, which have about twice the caffeine of Arabica beans, are often used to make cheaper, lower-quality coffee. However, Pinhasov specifically selected Robusta beans and then roasted them to a dark roast level, which further increases the caffeine concentration.

The warning on the packaging lets consumers know that “at 928mg per 12oz this coffee contains 4x the caffeine of coffee your barista normally serves you,” and that “may result in overproductivity, all-nighters, and the occasional feeling of invincibility,” but many felt that the tongue-in-cheek tone belied the real dangers of drinking such a strong coffee.

“I feel like the warning should be a little more warning,” one person commented.

Biohazard recommends that “you use our coffee after building up a high tolerance and proceed with caution,” noting that “this coffee is not for the faint-hearted.”

#7. Death Wish Coffee

• Caffeine: 728mg per 12oz

($10.99  FROM Walmart - Get Up To 4% Cash Back)

If you feel like regular coffee isn't strong enough to keep you alert and focused all day, try a cup of Death Wish, which is said to have 200% more caffeine than regular dark roasts.

In 2013, the Death Wish brand was named the "World's Strongest Coffee." While the company doesn't release caffeine data, we've seen third-party testing results that are shocking, with a 12-ounce (Starbucks "medium") cup containing between 650 and 728 mg of caffeine. In comparison, Starbucks' dark roast, medium roast, and light roast coffee beans have caffeine levels of 193, 235, and 270 mg, respectively.

Some are not put off by the name and logo and see it as a potential best friend, as it claims to have a highly caffeinated bean that combines the full Arabica flavor with a stronger buzz.

One drinker found that two cups of coffee gave her an energy boost, but the effect wore off within a few hours, after which she felt exhausted.

Another drinker had two cups of iced Death Wish coffee and was energized throughout the day, praising its rich aroma and flavor.

But most people are reluctant to drink this coffee regularly, calling it "bitter," "over-roasted," or "burnt."

It’s a good idea to give it a try!

#8. Sons of Amazon EXTREMLEY Strong Premium Coffee

• Caffeine: 660mg per 12oz

($19.99  FROM Amazon)

Sons of Amazon also makes one of the strongest coffees in the UK, 200% stronger than a regular canned cup of coffee!

For adrenaline and coffee lovers only, not for the faint of heart! 440mg of caffeine per 8oz (small cup)!

They buy the world's premium and best coffee beans for maximum caffeine, which is why it's expensive.

The beans are ethically sourced directly from the Amazon rainforest, then roasted and ground in the UK.

The beans are hand-roasted and carefully selected to produce a rich, full-bodied coffee with a silky crema and no bitter aftertaste.

Is it strong? Of course it is, but it doesn't have the anxiety-inducing, heart-racing effects of other "super strong" coffees. It's lighter in flavor, but it will definitely wake you up.

#9. Killer Coffee Industrial Strength

• Caffeine: 645mg per 12oz

($17.05 FROM The Killer Coffee Co.)

The Killer Coffee Co. is an Australian coffee company dedicated to providing you with the power of great coffee to keep you awake and energized during adventures and challenges.

Since that fateful day in 2014, this mission has inspired everything they do, from the raw materials of the finest coffee beans to the craftsmanship that pushes the limits of coffee.

Killer Coffee claims that a cup of coffee contains 360 mg of caffeine, three times that of regular coffee. However, lab tests show that 100 ml of brewed Killer Coffee contains about 180 mg of caffeine. This means that every 12 ounces of Killer Coffee contains 645 mg of caffeine.

There are three coffee blends, which are sent directly from the roastery in Sydney to all parts of the country, and the Industrial Strength blend is the most famous, which is made from hand-selected Arabica beans that are expertly roasted and blended.

Industrial Strength is a dark roasted coffee with a rich flavor, full of caramel, smooth taste, less bitterness, and no burnt gray aftertaste of other dark coffees.

We like that Killer Coffee Co. focuses on delivering a strong coffee experience because it caters to those who prefer a strong flavor and high caffeine content.

Their products have proven to be very popular with those who want a boost during the day.

#10. Cannonball Coffee Maximum Charge

• Caffeine: 600mg per 12oz

($19 FROM Cannonball Coffee Company)

Maximum Charge is one of the strongest coffees in the UK. It is made from single-origin Robusta beans from Rwanda and is extremely high in caffeine.

Cannonball Coffee's Maximum Charge contains 169mg of caffeine per 100ml of brewing liquid, and over 400mg of caffeine per 250ml of coffee.

This is based on brewing 80g of coffee with 1,000ml of water (the recommended brewing ratio). A bag of coffee brewed with 200ml of water contains 156mg of caffeine, which is almost as much as two cans of Red Bull.

This means that each 12oz of Cannonball Coffee contains 600mg of caffeine.

Maximum Charge is naturally high in caffeine and has a medium roast. The taste is smooth and complex, with notes of dark chocolate and roasted malt.

If you like dark roasts, this Maximum Charge may not be for you.

Frequently Asked Questions

1. Question: How is the caffeine content of these coffees measured?

   Answer: The caffeine content is typically measured through laboratory analysis of a standardized amount of brewed coffee. Specialized equipment and methods are used to accurately determine the caffeine concentration.

2. Question: What are the potential health risks of consuming highly caffeinated coffees?

   Answer: Excessive consumption of highly caffeinated coffees can lead to issues such as increased heart rate, anxiety, sleep disturbances, and digestive problems. However, individual responses can vary.

3. Question: How do the flavors of these intense coffees differ from regular ones?

   Answer: These highly caffeinated coffees can have bolder, more intense flavors. They might be more robust, bitter, or have unique flavor profiles compared to milder regular coffees.

4. Question: How do the prices of these potent coffees compare to regular coffee?

   Answer: Generally, these highly caffeinated coffees can be more expensive due to factors like rare ingredients, special processing, or limited production.

5. Question: What is the strongest coffee in the world?

   Answer: The winner for the highest caffeine content is Devil Mountain Black Label, which has 1,555 mg of caffeine per 12-ounce cup. Oops! The official recommendation is for people with high caffeine tolerance and low sensitivity.

   There are also a few popular coffees that are often considered the strongest, including Death Wish Coffee, which is known for its high caffeine content. Another contender might be Black Insomnia Coffee, which is also known for a significantly higher caffeine content.

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