You can't eat it if it is moldy. The honey that will be invented is not pure honey. Pure honey has a long shelf life.
Moldy phenomenon of food:
When the temperature reaches a certain level, various microorganisms, especially molds, will multiply in large quantities and produce toxic substances. For example, there is a kind of patulin, which is harmful to human body. If eaten, it will leave behind future troubles, produce symptoms of damage to nervous system, respiratory system and urinary system, and even have carcinogenic effects.
Actual shelf life of honey:
Scientific research and practice have proved that honey has strong antibacterial ability and is the only food in the world that will not go bad. In 1913, American archaeologists discovered an altar of honey in the ancient tombs of the Egyptian pyramids. It has been identified that this altar of honey has lasted for more than 3,3 years, but it has not deteriorated at all, and it is still edible. It can be seen that the really mature honey can be eaten completely after a long time, and there is no strict shelf life. However, as a food, according to the Food Law, the shelf life is required to be marked on food products, so honey manufacturers generally set the shelf life of honey as 2 years. ?
It must be pointed out, however, that if it is not inferior products such as ripe honey or water, these honey will be fermented, frothed, sour and inedible after being left for a long time. Of course, if the fermentation is not serious, it can still be eaten after being heated in a water bath at about 6℃ for half an hour. ?
in a word, no matter what honey, no matter how long it has been preserved, it is edible and will not be harmful to the body as long as it has not deteriorated. It's just that the nutritional value of long-standing honey is slightly worse than that of fresh honey.
Extended information:
Shelf life of common farm honey
First of all, the original farm honey must be pure. If there is no way to guarantee the purity, then there is no way to talk about the shelf life.
second, on the basis of determining the purity, whether each batch of honey is mature or not, that is, the Baume degree in the specialty is directly related to the shelf life of honey. The higher the Baume degree, the longer the shelf life.
In addition, the honey in the shopping mall is concentrated honey after processing, and such concentrated honey is essentially different from farm honey, so the real measurement standard of shelf life can not be compared at all. In this way, you can also directly identify and taste the honey in your hand. If it is sour in your mouth, it proves that it has gone bad. Good honey should be sweet in your mouth, and your mouth and throat will feel sour after eating for a while.
Reference: Baidu Encyclopedia-Honey
Reference: Baidu Encyclopedia-Moldy.