Shelf life refers to the length of time that a product (especially food or a perishable item) can be stored without becoming unfit for use or consumption. It is an indication of how long the quality, effectiveness, and safety of a product can be maintained when stored under suitable conditions.
Various factors can influence shelf life, including storage temperature, exposure to light, air, or moisture, as well as the presence of preservatives or packaging materials. It's essential to consider the shelf life of a product and to follow recommended storage guidelines to ensure the best quality and safety when using or consuming the product.