Sundries detection: Take 5ml of honey, dilute it with 5 times of water, stir it and let it stand for 24 hours. The formation of suspended blocks or deposits indicates that there are impurities. The more precipitates, the greater the doping amount. Pure honey does not precipitate.

Smell, smell: the smell of honey. After opening the bottle, fresh honey has obvious floral fragrance, while old honey has faint fragrance. Fake honey made of essence smells bad. Single nectar has its own fragrance.

Taste: Taste, honey tastes like honey, and sugar tastes like sugar. Pure honey tastes sweet and slightly sour, and the taste is soft and delicate. The honey taste of fake honey is light, and the aftertaste is light and short.

Honey is a supersaturated solution of sugar, which will crystallize at low temperature. The crystallized part is glucose, and the non-crystallized part is mainly fructose. Honey crystallization is related to honey seeds and storage conditions. Crystallization and non-crystallization are only two physical states of honey, which will not affect the quality of honey, change the texture and effect of honey, and cannot be used as the standard of pure honey!

Selection: Check the moisture content of honey. China generally takes immature honey, so honey has high water content. Most of the honey sold in the market is processed and concentrated, and its water content is relatively low. Stir the honey with chopsticks or fingers. It would be better if you could extract the honey. No wire drawing indicates high water content. You can also drop a drop of honey on the toilet paper. If the water trace is easy to spread, it means that the water content is high. Pure honey beads do not come loose.

Twist: observe and feel crystallization. The temperature is high in summer, and honey is not easy to crystallize; Honey is easy to crystallize when the temperature is low in winter. Some honey crystallizes easily, while others are not. Some people misunderstand honey crystallization, and think that a crystallization is fake honey or adulteration, which is incorrect. Honey crystals are fish eggs or grease-like, delicate, white in color, without sand feeling when rubbed by hand, and the crystals are easy to enter. The honey crystal mixed with sugar is granular, which feels like sand when twisted by hand, and it is not fragile, and it feels like eating sugar at the entrance.

Dissolve: dissolve honey in water, stir well and let stand. If there are impurities in honey, it will float or sink. Honey is a natural product, and a small amount of impurities does not affect the quality of honey itself.

Look: Look at the color of honey. Pure honey is shiny and transparent, with only a small amount of pollen residue and foam suspended in it, and no other excessive impurities. The color of honey varies from honey source to plant, but the color of honey in the same bottle should be uniform.

High-quality honey is very sticky because of its low water content. If the sealed bottle is turned upside down, it is obviously "laborious" for the sealed air at the mouth of the bottle to float.

Hot: When the naked eye can't tell, consumers can take a red-hot iron wire to check. If it is good honey, you can see the smoke coming out after plugging in the wire, but you can also smell the fragrance of fruits and flowers. If mixed with sugar, it will smell burnt.

Mo: If you buy ivory or yellowish "crystal honey", just pick it out and gently rub it on the back of your hand for a while, and the particles slightly thinner than edible salt will dissolve. This method can also be used to "test" royal jelly.

Real honey shakes the honey bottle very little in summer, and the honey liquid hanging on the bottle wall will slowly flow down after stopping shaking. After violent shaking, there will be a lot of bubbles in honey, which will easily make honey rise out of the honey bottle. But after 1-2 days, the bubbles will disappear automatically, but as soon as the honey bottle is opened, the gas will rush out! This is mainly because pure natural honey contains disinfectant hydrogen peroxide. Hydrogen peroxide is easily decomposed into oxygen at high temperature! That there is a layer of white bubbles on the surface of honey!

Odor recognition

When the smell of honey is identified by senses, the package can be opened at room temperature to smell its smell. If necessary, heat the sample in a water bath for 5 minutes, and then smell it.

High-quality honey-has the pure fragrance and floral fragrance of various honey-source plants. There is no other odor.

Sub-quality honey-light fragrance.

Inferior honey-the aroma is very thin or no aroma, and there are bad smells such as alcohol and wine.

Sugar identification

Fake honey is made of sucrose (white sugar or brown sugar) and alkaline water, and contains little or no honey. Its quality feature is that it has no natural honey fragrance, but a boiling syrup taste, no moist taste, and a white sugar water taste.

In order to further confirm the fake honey, a thick red-hot iron wire can be inserted into the honey. It's really steaming, but it's fake. Fluoroscopy can also be used. Mix 1 serving of suspected honey with 2.5 parts of water evenly, coat a 2 ~ 3mm thick layer on an opaque glass slide, or put it in a fluorescent-impermeable test tube and observe the fluorescence in a dark room. Generally, in natural honey, the color is yellow and slightly green, which is high-quality honey. If the color is grass green and blue green, it is inferior honey. If the color is gray, it is fake honey made of sucrose.

Extended data

Action efficacy

Honey can improve the composition of blood and promote the functions of heart, brain and blood vessels, so regular consumption is very beneficial to cardiovascular patients? [ 1]?

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

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

Honey also has the function of sterilization. If you eat honey regularly, it will not only have no effect on your teeth, but also have the effect of sterilization and disinfection on your mouth.

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

Insomnia patients can take 1 tablespoon of honey (added to 1 cup of warm water) every day before going to bed, which can speed up sleep.

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)

Beauty efficacy

1, honey cucumber mask (whitening and wrinkle removing) Take fresh cucumber juice, add milk powder and honey, mix a few drops of essential balm evenly, then apply it on your face and wash it after 20 ~ 30 minutes, or wash the cucumber, slice it and stick it directly on your face, which has the functions of moisturizing, whitening and wrinkle removing.

2, honey pearl powder mask Prepare a clean vial, pour half a bottle of pearl powder, then slowly pour in honey, while stirring, let the honey and pearl powder be fully mixed, be careful not to pour too much honey, and make it paste. So the mask is ready.

Wash your face with warm water before use, then dip a small cotton swab into the prepared mask and apply it evenly on your face, not too thick, just a thin layer, and wash it off after 30 minutes to make your face smooth and shiny.

3, red wine honey mask (whitening and nourishing)

Wine acid in red wine is fruit acid, which can promote keratin metabolism, dilute pigment and make skin whiter and smoother. Honey has moisturizing and nourishing effects.

Methods: add 2 ~ 3 spoonfuls of acacia honey to a small glass of red wine, adjust it to a sticky state, evenly spread it on the face, and wash it with warm water after eight minutes of drying.

Note: people with alcohol allergy should use it with caution!

References:

Baidu encyclopedia-honey