Five common food not degenerate

Spirit

The alcohol content of more than 10% of the liquor, itself has the disinfection effect. In the sealing conditions, microbial not easily penetrated, and difficult to reproduce, so never metamorphism. But this does not mean that the wine is kept too long, the general flavor of the liquor to 5 years later, the taste fades, flavour; Maotai aged wine is good wine, and liquor store for many years whether the wine is still inconclusive.

Honey

Fresh ripe honey, transparent or translucent colloidal viscous liquid honey, sugar accounted for more than 3/4 of the total, less water content, bacteria and yeast can not survive in honey. In addition, honey also contains antibacterial peptide 0/1% ~ 0.4%. Therefore the mature honey placed a long time is not easy metamorphism. But if it's not mature honey or mixed water inferior products, after a period of time will ferment bubbling, sour, can not eat.

Vinegar

Vinegar has antibacterial, bactericidal effect, can be used for food preservation, such as acid stains. The preservation period of vinegar for a long time, but also by the impact of raw materials, process. Brewing vinegar better technology, good sealing on the underground jar, time is more long more mellow taste.

Solid sugar

Solid sugar category includes commonly used white sugar, soft white sugar, crystal sugar, crystal sugar etc.. Due to the internal structure of solid sugar less water, osmotic pressure is strong, is not conducive to the growth of microorganisms, it is difficult to pollution. Sugar is also often used to preserve food, such as fruit, preserved fruit. But sugar is easy to absorb moisture, if placed properly, change the nature, will be microbial contamination.

Salt

The main component of salt is sodium chloride, very stable chemical properties. With sugar, edible salt is often used to preserve food, is a natural preservative. We often eat iodized salt, if not to avoid light and avoid high temperature, discharge time is too long will reduce salt iodine content, but the quality does not change.