Food grade 304, this reusable stainless steel ice cube preserves the cold and taste of your drinks, while not diluting, rusting or corroding, allowing your drink to retain its authentic taste and on the other hand, to cool the drink to a pleasant temperature How it works: after 2 to 3 hours in the freezer, they are ready to use. For most spirits, put 2 ice cubes in a glass and fill your favorite drink to about the height of an ice cube. Let stand briefly and enjoy The cooling gel of our cubes makes them an optimal cooling solution for all your spirits. They don't cool too hard or dilute like ice, but keep your drink cool longer than soapstone and don't leave annoying residue in your glasses. Easy to clean and store: the smooth cubes will not scratch your highball glasses. After use, you can just wash them with water, easy to wash and clean. They are dishwasher safe and retain their original appearance. In addition to whiskey, the stones are of course also ideal for enjoying gin, vodka, cognac, rum, wine and anything else that needs to stay fresh without altering its taste.