According to the NHS, this is equal to a standard mug of instant coffee, which usually contains 100mg caffeine.
Besides removing the classic dark color, the makers of Clr Cff say they've also stripped out preservatives, artificial flavors, stabilizers, sugar and sweeteners.
"We are heavy coffee drinkers".
A clear, colourless coffee is now available, bringing hope to those who love the caffeine-laden drink but hate its impact on their teeth. Introduced by CLR CFF, it's a transparent, caffeinated drink with a taste that's like a potent cold brew. "Like many other people we struggled with the teeth stains caused by it", they said.
In recent times, we've had coffee infused jeans and and weed infused coffee. "There was nothing on the market that would suit our needs so we chose to create our own recipe", said David Nagy.
The coffee costs around $4 for a 200ml bottle and can be bought at Selfridges, Whole Foods UK and online.
Our daily coffee fix sans the teeth stains? "In fact, it's very drinkable".
"If you are looking for a refreshing coffee but you want to keep your smile white, then Clear Coffee is flawless for you", the website reads.