Strongest Coffees (A Complete Guide)

Coffee beans on a palm

In terms of caffeine content, I think Black Label coffee is considered the strongest brand out there, delivering whopping caffeine at 1555 mg per 12 fl. oz cup.

That’s hella strong considering that a regular cup of brewed black coffee only contains about 95 mg of caffeine.

We’re all familiar with the effects of coffee on our bodies.

The caffeine in coffee is responsible for the energy boost that keeps us awake and alert throughout the day!

But not all coffees were made equal.

Some coffee variants and brands are stronger depending on the amount of caffeine, the brewing process, and other factors.

So, if you prefer your coffee fully caffeine-loaded and intense, then you’ve come to the right place!

In this article, I will be talking about the strongest coffees on the market and what makes them pack quite the punch.

Read on to find out!

How Do You Know If A Coffee Is Strong?

The brewing process of a coffee determines its strength. 

Many people think that the roast of the coffee decides its strength, which is wrong as it all depends on the coffee to water ratio that you use during the brewing process.

For example, you use a lighter roast coffee, which contains more caffeine than a darker roast, but you put in only a couple of scoops of coffee and a whole lot of water. What you’ll get is a relatively weak cup of coffee!

Now, let’s say that this time you used dark roasted coffee, which has less caffeine. But you put in three scoops and less water when brewing – the result is a stronger cup compared to your first batch.

See how the coffee to water ratio matters?

To sum things up, the amount of coffee and water you use in brewing ultimately determines how strong its taste and effects will be.

Strongest Coffee Beans

Aside from the roast, coffee bean type yields different levels of caffeine too.

Robusta coffee beans have the highest caffeine content at 2.9 mg per bean. This particular bean type is known for its strong and rubbery flavor that takes some getting used to.

In addition, Arabica beans, a popular variant with a light and sweet flavor, come second with 1.9 mg caffeine.

Other high-caffeine types include Tanzania Peaberry (1.42 mg caffeine), Indian Mysore (1.37 mg caffeine), and Costa Rica Tarrazu (1.35 mg caffeine).

How Much Caffeine Can I Have In A Day?

The FDA-approved caffeine limit for adults is 400 mg per day, which translates to roughly 4 cups of coffee.

However, since we’re talking about powerful coffees here, it’s safe to say they can exceed the recommended caffeine intake.

Only drink strong coffee if you’re sure that your body can handle it.

If you’re a beginner, try starting with regular brewed coffee first to see how caffeine affects you.

We all have different caffeine tolerance levels, and it’s important that you know your limits.

Excessive consumption of caffeine can cause side effects like anxiety, restlessness, headaches, and insomnia.

You can also cut your coffee portion in half to lessen its strength.

But if you’re sure you can handle it, by all means, proceed with caution!

How Can You Make Strong Coffee At Home?

To enjoy a perfect cup of strong coffee, you should focus on the concentration of the drink.

The roast, ratio of coffee-water and brewing process are important in making strong coffee.

The ideal coffee to water ratio for making the coffee strong is 1:15.

For 1 serving of strong coffee, you need 8 oz of water and 0.53 oz of coffee, and for 2 servings, 16 oz of water and 1:1 oz coffee is enough. 

Or simply, put 2 tablespoons of dark, coarsely ground coffee per 8 ounces serving of water and cook it for 5 to 10 minutes to make a perfect blend of strong coffee. 

Check out the video below to know the whole process of making strong coffee.

How To Make Strong Coffee on a Budget?

Strongest Coffee Brands

Wondering which coffee brands are the strongest?

I compiled the best ones for you! Beware, though; they’re not for the faint-hearted.

This table gives you an overview of the brands featured in the list.

Coffee Brands And NamesCaffeine Content (in every 12 fl oz) The Taste and The Type Of The Coffee
Black Label Coffee1555 mg smooth, bitter-free flavor
Very Strong Coffee 1350 mg intense, rich flavor
High Voltage Coffee1150 mg rich, smooth, and full-bodied flavor
Black Insomnia1105 mgrobusta and arabica coffee beans (80%+20%)
Maximum Charge coffee 1101 mg 100% robusta coffee beans
Biohazard 928 mg organic, 100% robusta coffee beans
has a bitter taste
smells like popcorn, chocolate, nuts, and tobacco
Death Wish728 mg bitter-free taste
includes the flavor of cherry and chocolate
Red Goat Coffee702 mgsmooth and bitter-free
Sons Of Amazon660 mgsmooth
Killer Coffee645 mgsmooth
Strongest Coffee Brands

Black Label Coffee

Black Label Coffee and is known as the strongest coffee ever made, containing 1555 mg of caffeine per 12 fl. oz.

Crowned as the “official coffee of the Sonoma raceway,” it’s a strong and smooth organic and gluten-free coffee that costs around $19 per pound.

And despite the high caffeine content, there’s no bitter aftertaste at all!

So if you’re up to the challenge, Black Label is yours for the taking!

Very Strong Coffee 

Very Strong Coffee is made with 100% Robusta coffee beans that stand at 1350 mg of caffeine per 12 fl. oz.

Because it’s made with Robusta, it has a strong and heady flavor, but not much bitterness.

Very Strong Coffee costs around $18 per pound.

High Voltage Coffee

High Voltage Coffee is an Australian coffee brand that contains 1150 mg of caffeine per 12 fl. oz.

The caffeine content of High Voltage is lower than the Black Label and Very Strong coffee yet stronger than many others.

This coffee is made with sustainably sourced dark roasted beans and has a rich and full-bodied flavor.

High Voltage retails for around $40 per pound.

Black Insomnia

Black Insomnia is a South African coffee brand that packs 1105 mg of caffeine per 12 fl. oz.

This coffee contains 80% of Robusta coffee beans and 20% of Arabica coffee beans.

A cup of Black Insomnia is decadent like dark chocolate and has hints of macadamia, caramel, and hazelnut.

Black insomnia is priced at around $21 per pound. 

Maximum Charge

Speaking of dark chocolate, Maximum Charge is another chocolate-laden coffee brand with the addition of toasted malt.

Maximum Charge contains 1101 mg of caffeine per 12 fl. oz.

This coffee is made from 100% Robusta coffee beans and is a medium roast, which gives the blend a smooth and milder flavor.

You can get the Maximum Charge for around $28 per pound.


Biohazard is a lightly-roasted coffee brand made from Robusta, containing 928 mg of caffeine per 12 fl. oz.

It has a light and pleasant flavor, but don’t be mistaken: this will keep you up all night.

Biohazard is priced at around $20 per pound.

Death Wish

Death Wish contains 728 mg of caffeine per 12 fl. oz.

The brand offers dark and medium roast options, and their beans are a combination of Robusta and Arabica.

Good thing is, they are certified USDA organic and fair trade.

It’s sold for around $35 per pound, and it definitely packs a punch without the bitterness associated with Robusta.

Red Goat Coffee

Red Goat Coffee is said to contain six times more caffeine compared to a normal cup of coffee.

Red Goat Coffee contains 702 mg of caffeine per 12 fl. oz.

This coffee is available in whole bean or ground, and you can get one pound for $20.

Sons Of Amazon

Sons of Amazon is a UK-based brand that offers highly caffeinated beans ethically sourced from the Amazon forest.

It contains 660 mg caffeine per 12 fl. oz.

This coffee has a smooth taste and a splendid aroma.

You can get Sons of Amazon in three different kinds of grind and compostable Espresso pods.

The price of the coffee is around $19 per 500 g. 

Killer Coffee

Killer Coffee is an Australian brand made with dark roasted Arabica beans.

It has a light and airy flavor with notes of caramel for a sweet finish.

Killer Coffee contains 645 mg caffeine per 12 fl. oz.

It’s priced at around $39 for 1 kg.  

Coffee being poured into a cup
A cup of strong coffee is not always a healthy coffee; bear in mind.

Final Thoughts

If you’re hankering for a strong cup of coffee that will surely keep you awake for a long period, there are plenty of brands that will give you what you need.

But it’s not just the coffee bean type that decides whether coffee is strong. Things like coffee to water ratio and type of roast can also influence the coffee’s strength.

However, there are many things to consider before drinking these deadly coffees.

All the brands in our list have caffeine content that greatly exceeds the 400 mg daily caffeine limit, so drinking them on a daily basis can make you more susceptible to caffeine’s side effects.

The best thing to do is not to make a habit of drinking very strong coffee. You can also dilute the coffee by adding more water, so it’s not as strong.

Furthermore, it’s also important that you know your body’s limits.

And don’t be too cocky with these brands because they mean serious business!

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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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