Cooking wine or cooking sherry usually refers to inexpensive grape wine (or rice wine in Chinese and other East Asian cuisine) which is intended for use as an ingredient in food rather than as a beverage. Cooking wine typically available in North America is treated with salt to allow its sale in non-licensed grocery stores. This also acts as a preservative, as the salt in cooking wine inhibits the growth of the microorganisms that produce acetic acid. This will preserve a bottle of cooking wine, which may be opened and used occasionally over a long period of time.