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Roasted coffee beans

Strongest Coffee Beans | Top 7 Brands Of The Strongest Coffee Beans

Whether you need an extra energy boost for your morning shifts, or a way to stay awake during your night shifts, making the strongest cup of coffee possible has risen in popularity in recent years.

If you are looking for the strongest coffee beans, or just enjoy the pure taste of caffeine, then in this article, we have highlighted the top 7 brands of the strongest coffee beans.

In A Hurry? Skip the rest of this article and see our top pick for the Strongest Coffee Beans from our Review Here!

What Do We Mean By Strong Coffee?

holding strong black coffee in white mug

Before we dive in, we firstly need to define what we mean by ‘strong’ coffee beans.

Typically strong coffee beans can refer to either roast level, or the amount of caffeine content, however, what we will be looking at is the more caffeine in your cup, the stronger we deem the coffee to be. 

Caffeine is typically measured in milligrams (mg). A typical cup of coffee contains 250ml of liquid and of this, a standard coffee might contain 100mg – 150mg of caffeine.

A brand such as Sons Of Amazon, which is made in Glasgow has 485mg of caffeine per 250ml, and therefore considered as a strong coffee bean, basically 4 times as strong as your standard cup of coffee.

Quick Peek at the TOP 7 Brands of the Strongest Coffee

WARNING: These coffee’s are suited for people with high caffeine tolerances only. Please speak to a health professional before consuming any coffee listed in this article.

With all that said and done, let’s now check out the Top 7 brands that self label themselves as being strongest coffee beans. This list is in no particular order.

Sons Of Amazon
– Medium Roast
– Caffeine Content: 440mg/8oz cup
– Price: ££
Check Price over on Amazon
Hustle Coffee
– Medium Roast
– Caffeine Content: 445mg/per serving
– Price: ££
Check Price over on Amazon
Black Insomnia
– Dark Roast
– Caffeine Content: 702 mg/120oz cup
– Price: ££
Check Price over on Amazon
Strong Coffee To Wake The Dead
– Medium Roast
– Caffeine Content: Not stated
– Price: £
Check Price over on Amazon
Cannonball Coffee Store
– Medium Roast
– Caffeine Content: 400mg/25 grams
– Price: £
Check Price over on Amazon
Nuclear Coffee
– Medium – Dark Roast
– Caffeine Content: Not stated
– Price: ££
Check Price over on Amazon
Black Donkey Devil’s Roast
– Dark Roast
– Caffeine Content: Not stated
– Price: ££
Check Price over on Amazon

Top 7 Brands Of The Strongest Coffee Bean

Sons Of Amazon

Kicking things off with a brand mentioned earlier in the article, Sons of Amazon is made using a blend of ethically sourced coffee beans directly from the Amazon rainforest, and then roasted in the UK.

They title themselves as being the UK’s strongest coffee, being 200% stronger than your standard cup of coffee, packing 440mg of caffeine per 8oz (small) cup.

Their artisan roasted coffee beans are carefully selected to produce a bold strong coffee with a silky crema and no bitter aftertaste. 


Hustle Coffee

Hustle Coffee is for every coffee drinker who is looking for a strong coffee to help stay focused.

Declaring themselves as one of the most powerful coffees in the world at a monstrous 445mg of caffeine per serving, Hustle enables you to stay focused and energized throughout the day.

Ground to perfection to accommodate Espresso, French Press and Drip Coffee Makers.

Hustle coffee is made from a premium blend of 100% Arabica Brazilian coffee beans.

Slow roasted by hand to a full medium roast preserving the natural flavours and allowing the sugars in the beans to caramelise, producing a coffee full of flavour, with natural sweetness.


Black Insomnia

Black Insomnia Coffee has apparently been independently verified as the world’s strongest coffee with 702 mg of Caffeine per 12oz cup.

The secret to Black Insomnia’s great taste and super high caffeine is the combination of their beans and the artisanal roasting approach.

Every Black Insomnia coffee bean is roasted to perfection in a time-tested drum roaster, so you get all the flavour and caffeine without bitterness or burn.

The taste of Black Insomnia coffee has notes of caramel, hazelnut, and macadamia aromas, on top of a bold dark chocolate flavour.


Strong Coffee To Wake The Dead

Strong coffee to wake the dead takes great care in their roasting process, roasted by hand in small quantities, with only the highest quality beans found.

Their small batch roastory allows them to have more control to bring out the real flavours from the coffee beans. Roasted and packaged in the UK using the most advanced techniques, no additives, all natural and actually quite delicious.

They use strong and bold robusta coffee, which gives them a highly intense, rich and smoky flavour, perfect to awaken you from the deepest slumber, and designed to get you through the morning ordeal. 


Cannonball Coffee Store

With 25g containing a performance boosting 400mg of caffeine, this coffee will get you firing in the morning, feeling alert & energised, lift heavier, run further and work harder, perfect for those looking to become more productive.

Cannonball Coffee use quality single origin Robusta beans which are naturally high in caffeine and packed with powerful antioxidants.

Their roaster will roast their beans to a medium roast to give you a smooth and mellow taste, ensuring that a ‘strong’ coffee is one that you will actually enjoy drinking.

Also, they one of the only brands that provide a brewing guide included with every order, which will help you make better coffee at home.


Nuclear Coffee

At Nuclear Coffee, they are passionate about flavour, and the coffee experience. 

For their coffees, they strive to maintain the balance of the maximum strength, without compromising on flavour, and draw from over 30 years of roasting experience, to deliver a consistently high quality experience with every cup.

Their coffee is another 100% Fairtrade which they strongly stand by. Fairtrade is about ensuring that the coffee farmers get a fair price for their produce. In addition, there is a premium which is invested in agricultural improvements, schools and reforestation.

They use a blend of beans from Brazil, Papua New Guinea and Mexico, and tastes great, coming off really smooth with just a slight bitterness.


Black Donkey Devil’s Roast

Black Donkey is another brand who label themselves as another extremely strong coffee.

Both their characteristic blend of 100% premium Robusta and their masterful roasting process, offer you the additional kick for top performance and maximum creativity and concentration.

They ensure no additives or flavour enhancers are used in the cultivation and subsequent refinement of the beans. Their entire production process is completely biologically sustainable.

Bringing in a low acidity with subtle notes of nutty chocolate, Black Donkey coffee is carefully thought for coffee lovers from all walks of life. They only select high quality beans from Colombia, Brazil, Kenya, Ethiopia and India.


Honorable Mention

Death Wish Coffee

We could not leave without mentioning Death Wish Coffee, arguably the brand that set the strongest coffee beans trend off, partly due to their highly successful Super Bowl ad a few years back, and therefore, maintains itself as one of the best known brands out there.

Claiming to be the most potent coffee in the world, Death Wish packs a mega 728 milligrams of caffeine in a 12-ounce cup.

The company won’t reveal what coffee beans they use, but they do claim to meticulously test the caffeine content of each batch they source. 

The taste of Death Wish is surprisingly palatable. It is of course strong, but not overwhelmingly bitter or unpleasant.

Our Choice: The World’s Strongest Coffee Beans?

All of the mentioned brands above we would recommend for you to try.

Remember, the strength of coffee is subjective, and everyone has different taste preferences at the end of the day.

However, from our viewpoint, research suggests Black Insomnia to be the strongest coffee beans.

Packing 702 milligrams of caffeine into just 12 ounces, without adding caffeine to what’s naturally in the beans.

This company really did go to great lengths to prove their coffee’s potency.

Black Insomnia apparently sent samples of the coffee to a Swiss-based laboratory, which tested it via liquid chromatography.

They say that Black Insomnia came out on top compared to all of those reviewed, with a whopping 17.5 grams of caffeine per kilogram of coffee.

The company is confident that no one will top their coffee’s caffeine level, not because they can’t, but because they shouldn’t, as it is a matter of public health and safety. 😉

What Type Of Coffee Beans Are The Strongest Coffee Beans?

two types of roasted coffee beans

There are two widely grown species of coffee, Arabica coffee beans and Robusta coffee beans.

“The Robusta bean contains 2.1% caffeine on average which is almost double the 1.2% of the Arabica bean”

– Alex Mastin, homgrounds.co.

Ultimately brands that aim to produce caffeine-charged coffee generally test beans from various regions from around the world in order to find the strongest coffee beans, and try to become the strongest coffee in the world.

What Brewing Method Is Best For The Strongest Coffee Beans?

coffee in white cup with coffee equipment around it

To get the best tasting strong coffee, try an espresso, french press, or drip coffee maker. 

Drip coffee usually brews longer than coffee made in a french press or an espresso maker. 

Due to the drip coffee brewing time and the serving size (12 ounces), this usually has the most caffeine.

Does drip coffee contain more caffeine than espresso? Read here.

The three brewing times are approximately as follows;

  • Drip coffee: About 4-6 minutes
  • French press: Around 3-5 minutes
  • Espresso machine: Around 20-30 seconds

How To Brew Drip Coffee?

Why do you need a gooseneck kettle for pour over coffee? Read here.

Strongest Coffee Beans FAQ’s

Q: Are some coffee beans stronger than others?

A: Certain beans have more caffeine (themselves, per mass) than others, so there’s more of it to get extracted into the cup.

Q: Does cold coffee keep you awake?

A: Frozen, or blended coffee drinks often have ice added, which reduces the amount of caffeine overall due to watering the drink down.

But the amount of caffeine could still keep you awake.

Q: How do you grind beans for strong coffee?

A: If you want to make strong coffee, grind your coffee beans right before you’re ready to brew. If you’re drip brewing, grind the coffee beans to the consistency of beach sand. A coarse grind like kosher salt is better for a French press.

putting roasted coffee beans into coffee grinder

Q: What happens when coffee sits?

A: When you leave your coffee to sit for too long, the reaction between hydrogen and oxygen will raise the pH level of the coffee, making it taste bitter or “stale”.

Therefore, this is why you should never let your coffee sit in a brewing pot for longer than necessary.

Conclusion: Strongest Coffee Beans

So overall, it is hard to define what “strong” coffee really is.

However, these top 7 brands of the strongest coffee beans focus on the actual caffeine content of their blends, to give you some seriously strong coffee.

Just remember, consume at your own risk, because these super caffeine charged coffees do not actually taste that different from a regular dark-roast coffee.

So you may not notice the strength until it’s too late 😉

Have you tried any of our top 7 brands of the strongest coffee beans? What’s your favourite?

7 thoughts on “Strongest Coffee Beans | Top 7 Brands Of The Strongest Coffee Beans

    1. You are welcome, if you end up purchasing any of the brands within this article, let us know what you think so we can share it with the rest of our readers 🙂

    1. Hey Joan, Thanks for your comment, and you are welcome.
      Let us know if you end up trying one of these brands, our pick is black insomnia 😉

  1. Wonderful article. Each line is very informative. you have collected most of the Top 7 brands of the strongest coffee that found in the market. I really enjoy your article.
    Thanks for sharing such an informative article.
    Hopefully, waiting for your more article in the future.

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