Coffee 80 Times Stronger Than Espresso Could Keep You Up For 18 Hours

CNN/ Newswire | 9/7/2016, 8:38 a.m.
How many cups of coffee does it take to get you going in the morning? If the answer is many, ...

By Sophie Eastaugh

for CNN

(CNN) -- How many cups of coffee does it take to get you going in the morning?

If the answer is many, the invention of a turbo-powered superbrew that is so strong it comes with a health warning might put your habit into perspective.

A cafe in Adelaide, Australia, is serving the "Asskicker," a concoction of four espresso shots, two different strengths of cold drip and milk that its inventor says contains 80 times the amount of caffeine of a standard shot.

The drink, designed to be sipped slowly over three to four hours, promises to keep coffee lovers buzzing for up to 18 hours.

While a normal espresso, as defined by the US Department of Agriculture, packs around 63 milligrams of caffeine, this drink has 5 grams, according to its creator. The US Food and Drug Administration and USDA note that 400 milligrams is the limit not generally associated with dangerous, negative effects.

Turbo coffee

Steve Benington, owner of Viscous Coffee, developed the drink for a local emergency room nurse who needed something to keep her going during unexpected night shifts.

"We had to tone it down a bit because it kept her up for a total of three days," said Benington, adding that the nurse sipped it over two days.

The barista, who opened his cafe a year and a half ago after a career in the Australian Navy, said the turbo coffee has become very popular in recent weeks.

However, he actively discourages customers interested only in a gimmick, and advertises it with a warning for those with high blood pressure or heart conditions.

"I have a quite detailed talk with people before they actually purchase one. If I can talk someone out of it, they're not ready for the drink," said Benington.

Warning signs of coffee overdose include shakes and sweats, dilated pupils, stammering over your words, vertigo and nausea.

"If you keep going, those symptoms will get worse," said the coffee-loving business owner. "If you stay within the guidelines, you're fine."

The Asskicker experience will set you back around $12 ($16 AUD) for a 16 ounce cup.

World's favorite drug

Occurring naturally in coffee beans, tea leaves and cacao, caffeine is the most commonly used drug in the world.

The average amount of caffeine consumed by adults is 300 milligrams per day, according to a 2012 FDA report (PDF). Caffeine is a bitter white alkaloid that stimulates the central nervous system -- the brain, spinal cord and nerves -- to make us feel more awake.

While studies have not proven (PDF) that caffeine produces significant life-threatening health risks such as cancer or heart disease, excess consumption can lead to increased blood pressure, gastrointestinal problems and raised cholesterol.

Though rare, there have been some deaths linked to caffeine. A 14-year-old with a heart condition died after drinking two energy drinks in 24 hours. A 19-year-old overdosed on a dozen caffeine pills, and in another case, a high school wrestler from Ohio died after consuming powdered caffeine -- a highly concentrated form that the FDA has issued strong warnings about.