Coffee is a much-loved staple for those who need a wake-up call in the morning but a new brand could have drinkers calling an ambulance instead.
A coffee manufacturer in the United States claims to have created the world's strongest coffee with 200 percent more caffeine than a standard cup of the black stuff.
The potent brew is named Death Wish and was born at a New York manufacturers of the same name. Plastered on to the front of the packet to complete the effect is a chilling skull and crossbones.
Makers swear that the beans in the killer cuppa are organically grown and fair-trade.
On Facebook, more than 11,000 users have given Death Wish the thumbs-up.
Tom Suchomel said: "Two thumbs up on the caffeine, but this is also some of the best tasting coffee I have had - and I've had coffee from all over the world."
An official warning on the firm's website says that drinkers should expect sleepless nights after downing a cup.
"This is not your regular morning coffee. This is not your store-bought coffee. You will not find this coffee at your local diner or at your sissy Starbucks," it says.
"Death Wish coffee is the most highly caffeinated premium dark roast organic coffee in the world. This is extreme coffee, not for the weak. Consider yourself warned.
"Many sleepless nights will result. By making this coffee some have called us irresponsible. We think it's revolutionary."
Can Death Wish overtake the Italian espresso as coffee drinkers' favourite high-strength drink?