The term open dating refers to the “sell by,” “best by,” and “use by” date.In other words, it might refer to whether a commodity should no longer be on a pantry shelf (unfit for use), or just no longer on a supermarket shelf (unfit for sale, but not yet unfit for use).For example, pasteurized milk can remain fresh for five days after its sell-by date if it is refrigerated properly.
Bacterial contaminants are ubiquitous, and foods left unused too long will often be contaminated by substantial amounts of bacterial colonies and become dangerous to eat, leading to food poisoning.
However, shelf life alone is not an accurate indicator of how long the food can safely be stored.
Product quality is often mathematically modelled around a parameter (concentration of a chemical compound, a microbiological index, or moisture content).
For some foods, health issues are important in determining shelf life.
Other numbers may appear and reference the specific plant manufacturing or product information and are not useful to the consumers.
If you have specific questions about a company's product, most manufacturers offer a toll-free number to call for questions about canned food expiration dates.
: Baby formula Use a marker or label to indicate when you purchased them.
Each canned food manufacturer has a unique coding system.
One of the most frequently asked questions about canned food is its shelf life and "use-by" dates.