A company out of South Africa has brewed up the world's strongest coffee. The average cup of joe has 150 milligrams of caffeine. Black Insomnia contains 702 milligrams of caffeine per 12-ounce cup.
According to the Black Insomnia website, it's not the roast, we haven’t burned our beans or made a really dark coffee. Nor have we made our coffee less soluble. No, how we measure the strength of our coffee is simply by the caffeine content – dangerously high levels of caffeine.

Black Insomnia has a nice walnut and almost sweet taste profile.

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