Lots of foods are labelled with “use by” or “best before” dates. “Use by” dates appear on foods that go off quickly and specify the last date they can be safely eaten, while “best before” and “display until” dates state the date when the taste or quality of the food will begin to decline.
“Use by” dates are typically found on dairy products, meat and fish, which spoil quickly and can cause illness if eaten after their “use by” dates. According to the FSA, it can be dangerous to eat food past the “use by” date even though the food might look and smell fine. It should be noted that instructions such as “consume within three days of opening” don’t mean that the products can be eaten for three days if they were opened on their “use by” date - this date should still be seen as the last date that they can be consumed safely. Freezable food can be frozen any time up until the “use by” date, although it’s important to check the packaging for further instructions on how to freeze and thaw it along with the length of time you can safely store it for