Giannis Miliotis is a brilliant bartender at Oz Cocktail Bar on the Greek island of Chios. Chios also happens to be where Mastica - the plant which produces the resin that goes in to making Mastiha Liqueur - originates from. Giannis takes us through a bit of Mastica history, how he uses the liqueur in cocktails, and we hit him with the Free Pour 5!