But the time is best not to exceed two days. When stored at low temperature, bread will soon harden; On the contrary, if it exceeds 30℃, it will affect the color, nutrition and taste of bread. 18℃~25℃ is the most suitable storage temperature for bread, while the temperature in the freezer is about 2℃~6℃, which will accelerate the aging of bread.

However, it should be noted that cream and bread with stuffing containing a lot of sugar and oil should be kept in the refrigerator, otherwise it will go bad easily.

Among baked goods, bread has the shortest shelf life compared with most products. The deterioration of bread is generally hard, rough, moldy and rotten, and the reason for this change is the aging of starch.

The aging reaction of starch began from the moment the bread was baked. At room temperature, the aging of bread is relatively slow, and refrigeration will greatly accelerate the aging of starch in bread, making bread hard, rough and poor in taste, so bread should be preserved at room temperature as much as possible.

Of course, some cold-processed bread, such as bread with perishable fruits and light cream, can only be preserved at the expense of taste in order to prolong the shelf life.