Expired: Honey does not have a strict shelf life
Honey is a supersaturated solution of sugar and contains a large number of antimicrobial components, theoretically, the natural mature honey as long as the preservation of the proper is never expired, but according to the relevant provisions of the state food must be labeled with a shelf life, so honey merchants often honey shelf life labeled as 18 months or 2 years, but does not mean that the honey will not go bad after 18 months or 2 years in the store, in fact, honey has no strict shelf life. However, it is not true that the honey will be spoiled after 18 months or 2 years, in fact, honey does not have a strict shelf life, in short, there is no fundamental link between the expiration date of the honey and the spoilage.
Deterioration: sour taste, alcohol flavor, etc.
Honey deterioration is mostly caused by improper preservation, the reason is that there exists a kind of sugar-resistant yeast in honey, if mixed with water during the preservation process, these sugar-resistant yeasts will reproduce and decompose glucose and fructose to produce alcohol, carbon dioxide and water, which will make the honey appear to have a lot of blisters, sour taste, thinning, alcohol flavor and other deterioration phenomena, for which the honey has a very high risk of being spoiled. The honey has been deteriorated, the honey can not be consumed, otherwise it is easy to cause vomiting, abdominal pain, diarrhea and other adverse reactions.
Discussion: decide whether the honey itself is spoiled
Honey expired can still eat depends on whether the honey itself is spoiled, in fact, the natural mature honey in the sealed good environment can be saved for several years without deterioration, so the expired but not spoiled honey is completely can continue to consume, but has been deterioration of the honey is not suitable for continue to consume, and the honey is whether in the shelf-life The honey is not necessarily related to whether or not it has been spoiled, for example, honey that is still within its shelf life can be easily spoiled if it has been mixed with too much water.
Use: can be used as hair conditioner, sunscreen, etc.
The main reason for honey spoilage is that sugar-resistant yeast multiplies in honey, so slightly spoiled honey can be heated to about 60 degrees Celsius to kill the yeast and then eaten within a short period of time, has been seriously spoiled honey is not suitable for further consumption, but can be used as hair conditioner, body wash, sunscreen, emollient, etc. For example, when you wash your hair, you can put the honey into your hair and use it as a hair conditioner. For example, when you wash your hair, you can put it on your hair and rub it repeatedly, and rinse it off with warm water after about 15 minutes to make your hair darker and shinier.
Preservation: Do not bring water into the honey
The high osmotic pressure of honey makes it impossible for most microorganisms to survive, but there is still a kind of sugar-resistant yeast in the honey, which basically can't reproduce when the water content of the honey is lower than 20%, but if the water content is higher than 20%, the sugar-resistant yeast will reproduce in large quantities and lead to the honey deterioration, and honey has a strong adsorption property of moisture in the air. At the same time, honey has a strong adsorption of moisture in the air, so it is necessary to use completely sealed containers (not metal containers) to save, and in the access must not be brought into the water.