"Open Dating" is a calendar date applied to a food product by the manufacturer or retailer.
The calendar date provides consumers with information on the estimated period of time for which the product will be of best quality and to help the store determine how long to display the product for sale.
It is also based on the conditions of handling, storage, preparation, and use printed on the label.
Do not buy or use baby formula after its "Use- By" date. Packing codes are a type of closed dating which enable the tracking of product in interstate commerce.
Factors including the length of time and the temperature at which a food is held during distribution and offered for sale, the characteristics of the food, and the type of packaging will affect how long a product will be of optimum quality.