It’s hot outside, you are sweating, you are very thirsty and you fancy a nice cold beer but no chill drink in your fridge! Here’s how to lower 20° of temperature to a canned drink in just two minutes. To realise this miracle, you need only three ingredients: water, salt, and ice. Fill a small basin of water, add some ice cubes and put inside your can. Cover the can with ice and spread on two teaspoons of salt. In two minutes; the temperature will drop of 20°!