(TheDrinksBusiness) - A Conservative MP is stepping up demands for a ban on the use of liquid nitrogen in cocktail making. Gaby ScanlonThe call comes after a teenager from Lancaster needed a life-saving operation to remove her stomach. David Morris MP said: “I am very angry that one of my constituents has been injured by liquid nitrogen and as far as I am concerned that is one constituent too many.” Gaby Scanlan, 18, was taken to hospital after feeling breathless and developing severe stomach pain after drinking a cocktail during a night out with friends in Lancaster city centre.