Stain solution: Clear Coffee removes color and calories

That's right, all the caffeine and none of the brownness, say the makers of Clr Cff, clear coffee so hip it's shed its vowels.

"We are heavy coffee drinkers".

Would you drink your coffee if it's not, well, coffee-colored? Well, CLR CFF contains just 8 calories per 200ml bottle. Like many other people we struggled with the teeth stains caused by it.

Clear Coffee has already started being used by bartenders to make coffee flavored cocktails.

For now, Clr Cff is only available in the United Kingdom and Slovakia. The next day, you add cold water to get the very last dregs of flavour out of the wet beans - and that's what this tastes like.

Nothing ruins a Groupon for half-off teeth whitening like a nice cup of coffee every single morning.

The reviewers at Metro said, "It's odd but not unpleasant". But one of its tasters detects "the aftertaste of cheap wine", and suggests it would go well with a "splash of rum".

CLR CFF is the brainchild of brothers David and Adam Nagy and is now available to order online or purchase in stores.

To try it yourself you'll need to pop on over to London, where it's now stocked at Selfridges and Whole Foods.

Vanessa Coleman