In the food processing industry, shelf stable refers to a version of a product that typically requires refrigeration, that has been altered so it can be safely stored and sold in sealed container at room temperature while still having a useful shelf life (for instance, the first shelf stable formalation of ranch dressing, created in 1983, had a shelf life of 150 days [1]). Food processing is the set of methods and techniques used to transform raw ingredients into food for consumption by humans. ... Shelf-life is the length of time that corresponds to a tolerable loss in quality of a processed food. ... Ranch dressing is an American salad dressing and vegetable dip made of buttermilk or sour cream, mayonnaise, and minced green onion, along with other seasonings. ...

Various food preservation techniques are used to extend a food's shelf life. Decreasing the amount of available water in a product, increasing its acidity, or irradiating or otherwise sterilizing the food and then sealing it in an air-tight container, can all extend a food's shelf life without significantly changing its taste or texture. [2] Various preserved foods Food preservation is the process of treating and handling food in such a way as to stop or greatly slow down spoilage to prevent foodborne illness while maintaining nutritional value, texture and flavor. ... // Food irradiation is the process of exposing food to ionizing radiation in order to disinfest, sterilize, or preserve food. ...