For instance, when 180 ml of an alcoholic or non-alcoholic beverage, such as wine, sake, coffee or tea, having a specific heat of about 1 is heated to elevate the temperature by more than 50??? C., it suffices to use CaO in an amount of about 40-45 g and a water solution of a salt or an aqueous alcohol solution in an amount containing about 12-13 g of water.