Skim


 * 1) To remove the top layer from a liquid, such as cream from milk or foam and fat from stock, soups, sauces, etc.
 * 2) To remove scum, fat or other impurities from the surface of a liquid, such as stock or jam, while it is cooking. A slotted spoon is generally used to remove solid impurities, while an unslotted spoon would be used to remove liquids such as fat.