Indian-led team turns whiskey clear using graphene filter
A UK-based team led by Indian researcher Rahul Nair have tailored graphene, a 2D form of carbon, to allow solvents to pass through without compromising its ability to sieve out small particles. When whiskey was passed through the filter, it removed the larger molecules, which give whiskey its amber colour. The clear whiskey retained its smell though, said Nair.