When bees brew honey, they collect nectar from the flowers of flowering plants and brew it into honey in the hive. Honey can be divided into pure honey and processed honey products. In general, the shelf life of honey is three to five years. Pure honey can be used for other purposes, such as wiping hands and feet, if it is stored improperly, often opens its mouth, frequently touches the air or passes the normal shelf life.
Real pure honey has strong antibacterial ability and is not easy to rot and deteriorate. Because honey has a high sugar content and forms a high osmotic pressure, microorganisms cannot survive, so honey does not add any preservatives and is not easy to deteriorate. But the shelf life of real honey is generally only about 3 to 5 years. After this time, honey not only lost most of its nutrients, but also was bred and deteriorated by bacteria and microorganisms.
Selection method of honey
1, depending on the level of honey
Honey is graded and generally divided into four grades. The honey sources of first-class honey are generally Baihua honey, loquat, longan, Sophora japonica, litchi, rape and so on. The color is generally white, light amber and water white. Honey is not only sweet, but also has a unique flower fragrance. The color of secondary honey is yellowish and amber; The color of the third-grade honey is yellow and deep amber; The colors of Grade 4 honey are dark amber and dark brown.
2. Viscosity of honey
Good honey has high viscosity. When honey is still in the bottle, shaking the bottle won't cause too much shaking. After the shaking stops, the honey hanging on the bottle wall will flow down the bottle wall.
3. The drawing degree of honey
Good honey is scooped up with a small spoon and slowly stretched upwards, which will pull out thin honey filaments. Honey filaments will shrink into a ball after breaking and slowly dissolve in honey.