White flour put five years can not eat, has long exceeded the shelf life, eat will cause harm to human health.
Usually, the shelf life of white flour for less than a year, even if it is vacuum-packed, the shelf life is not more than two years, so the white flour put five years has long since expired, this time the flour has been deterioration of the phenomenon, there may also be bacteria and other microorganisms, after eating will be harmful to the body.
Flour stored for five years, there can be a series of changes in color, character, smell, such as mold, lumps, abnormal smell, and will breed Aspergillus flavus, Aspergillus oryzae. Even if cooked and consumed, it may cause symptoms of poisoning. At the same time, the aflatoxin contained therein can also cause damage to the liver, which can be life-threatening.
In short, white flour can’t be eaten after five years. For your own health, you should stay away from expired food.