Liquid smoke is a condensation product obtained from wood or other organic materials when they are burned. It refers to the liquid that results from the cooling and condensation of the combustion gases produced by burning wood, which contains water-soluble compounds derived from the pyrolysis of lignin and cellulose in the wood. Liquid smoke is often used as a flavor enhancer or for adding smoky flavors to various dishes such as barbecue sauces, marinades, and rubs.