Coffee has always been brown, but who knew two Slovakian brothers would discover and create the world's first clear coffee, called CLR CFF. People have always taken their Java brown, but it has created a problem of staining the teeth - a problem the two brothers have noted and the reason why they concocted the coffee.

David and Adam Nagy were living in London when they came up with the idea. "We are heavy coffee drinkers," Grazia Daily reported the brothers as saying. "Like many other people we struggled with the teeth stains caused by it," they said. They mentioned that there was nothing on the market to soothe their issues, so they decided to create their own recipe.

The two brothers have made their java with ingredients that wouldn't affect the color of the teeth. But somehow, their concoction still led people similarly to a real coffee with its distinctive taste, effects, and smell. Moreover, they spent months trying to perfect the brew that would also rid their product of sweeteners and preservatives.

They also added saying that because of their busy lifestyle, they want to have a ready-to-go drink to give them the boost but would be low in calories. The Nagys stated that they still used physical processing and no chemicals were added to the drink.

When they have created their drink, they've noticed that caffeine is losing or seeping out of the clear coffee. To compensate for the loss of caffeine, high-quality natural caffeine, but still boasts of having no preservatives, artificial flavors or sweeteners.

Making the coffee took them a couple of roasted Arabica beans and clear water itself. But how they made it translucent is top secret. A two-pack Clear Coffee will get people £5.99 or $7.50, while a five-pack of the product will have you paying £14.99 or $18.79.