When purchasing extract, look for products that are labeled "pure" or "natural" so that the product is actually pure extract. If the flavoring is labeled as "imitation" it is actually made of all artificial flavoring and will not have the same rich flavor as pure extract. If an extract does not contain the minimum amount of alcohol, it is considered a flavoring, not an extract. Extracts can be stored indefinitely without loosing much flavor. Keep the extract in a cool dry area away from heat and direct light in an air tight sealed container.