Because of its extremely high concentration and high osmotic pressure, the cells entering it will be seriously dehydrated and die, so honey will not go bad. Really mature honey can be eaten after a long time, and there is no strict shelf life.

However, as for the shelf life of honey in the market, according to the Food Law, the shelf life should be marked on the food. So honey manufacturers generally set the shelf life of honey as 2 years or 18 months.

Honey is nectar collected by bees from flowers of flowering plants and brewed in hives.

Bees absorb nectar or secretions with a water content of about 75% from the flowers of plants and store them in the second stomach. Under the action of various transformations in the body, after 15 days, when various vitamins, minerals and amino acids are enriched to a certain value, the polysaccharides in nectar are simultaneously transformed into monosaccharides glucose and fructose which can be directly absorbed by the human body.

Extended data:

The efficacy of honey

Honey can improve the composition of blood and promote the functions of heart, brain and blood vessels, so it is very beneficial for cardiovascular patients to eat it regularly.

Honey can maintain the liver, promote the regeneration of hepatocytes and inhibit the formation of fatty liver.

Eating honey can quickly make up for physical strength, eliminate fatigue and enhance disease resistance.

Honey also has the function of sterilization. Eating honey regularly not only has no effect on teeth, but also has the effect of sterilization and disinfection on oral cavity.

Honey can treat moderate skin injury, especially burns. When honey is used as a skin wound dressing, bacteria cannot grow.

Honey can also moisten the intestines and relieve constipation (as long as it is natural and exquisite real honey, it can moisten the intestines and relieve constipation).

Baidu encyclopedia-honey