"In fact, many people don't understand the concept of' shelf life'." Fan Zhihong told the reporter of Life Times. The shelf life is defined as "the quality guarantee period of products under normal conditions". During the shelf life, the merchant is responsible for the quality of the product, so it is recommended that everyone eat it during the shelf life, but the shelf life is not the only criterion for judging whether the food has gone bad.

During the shelf life, food may deteriorate prematurely due to changes in storage methods, environment and other factors. For example, after the package is opened, the shelf life will be shortened; After the shelf life, food doesn't mean that it must be spoiled and can't be eaten. It needs your own judgment.

Storage method of bread:

First, the normal temperature preservation method

Fresh bread can be stored at room temperature for about two days by putting it in a food-grade plastic bag and then tying the bag tightly. As long as it is eaten within two days, the freshness of bread will not be greatly affected.

If it is home-baked bread, you can tie it in a fresh-keeping bag, cool it to about the same temperature as your palm and store it at room temperature.

Second, the frozen preservation method

Putting bread in the freezer is the best way to preserve it, because freezing can lock the delicious taste of bread to the greatest extent, which can be preserved for a short time or a long time. However, freezing bread is also tricky. Never put a large piece of bread directly into the freezer, because a large piece of frozen bread is difficult to reheat and will not taste very good.

People's Daily Online-Health Care: Bread and canned biscuits may not be edible after the expiration date.