The claim is for the caffeine level in the beans not really the taste of the coffee.I've been wanting to try black rifle.
Tried Death Wish coffee awhile back made here upstate just above Albany. Touted as the strongest coffee in the world. Bought a bag of pumpkin spice on sale for a few bucks normally it's $20 lb.
Didn't taste very strong to me, like regular coffee. Then I noticed on the bag it called for 2.5 tablespoons of coffee for every 6 ounces of water..... No wonder they can call themselves strongest coffee when they say to add two and a half times more than any other brand Lol.
For strong tasting coffee, I roast the beans to a darker level.