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Honey does not have a shelf life in the strict sense of the word. The reason is that the osmotic pressure of honey itself is very high, and honey contains a large number of natural antibacterial ingredients, so the mature natural honey made entirely by bees actually has no shelf life, but if the quality of honey is too poor, it is also very easy to deteriorate in advance, for example, the concentrated honey artificially concentrated with immature honey with ultra-high water content has a strict shelf life. Although honey does not have an expiration date, it must be marked as a food, so the shelf life of honey is generally marked as 2 years or 18 months.
How to store honeyHoney can be sealed and stored at room temperature, and the honey will be placed at room temperature for a long time, without mildew or qualitative change, the main reason is that honey has a strong antibacterial effect on various bacteria. Honey contains antioxidants, but also because it is acidic and has a high sugar content, it maintains a high penetration power, and microorganisms cannot survive in this environment.
In addition, honey is a weakly acidic substance, and the container for storing pure honey should be made of glass or ceramic utensils, not metal utensils such as iron and lead, so as not to contaminate the honey with free heavy metals. Honey stored in non-toxic plastic bottles should not be too long. Put the honey in the container with a lid and seal it to avoid contact with humid air to avoid fermentation.
It should be stored in a clean, cool and ventilated place so that the honey can be stored in the refrigerator to avoid contamination.
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If it hasn't spoiled, it's still edible. Honey is a food with a long shelf life, although the honey products we buy are labeled with a shelf life of 18 months or 2 years, but in fact, well-preserved honey has a shelf life much longer than this shelf life.
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Honey cannot be eaten after five or six years of storage.
Real pure honey has strong antibacterial ability and is not easy to spoil. Because honey has a higher sugar content and forms a higher osmotic pressure, microorganisms cannot survive, so honey is not easy to spoil without adding any preservatives.
However, there is a shelf life for ** honey on the market, which is generally 2 years. If the purity of honey is low, its antibacterial effect is greatly reduced. At the same time, the storage conditions of honey are more critical, and the suitable temperature for sealed storage is 5 -10, which needs to be dry and ventilated, and avoid sunlight.
If the storage conditions cannot be guaranteed, the high purity of the honey cannot be guaranteed, and the food safety risk of honey stored for 5 years is greater, so try to avoid eating.
How to choose honey:
1. Look at the grade of honey:
Honey is graded, generally divided into four grades, the first honey source is generally flower honey, loquat, longan, locust flower, lychee, rape flower, etc., the color is generally white, light amber, water white, honey in addition to sweetness also has a unique floral fragrance.
The color of second-class honey is yellowish and amber; The color of the third-class honey is yellow, dark amber; The color of the fourth-class honey is dark amber, dark brown.
2. Viscosity of honey:
Good honey has a high viscosity, when the honey is still in the bottle, shake the bottle, the honey will not produce much shaking, after the shaking stops, the honey hanging on the bottle wall will flow down the bottle wall.
3. Stringiness of honey:
Good honey is scooped up with a small spoon and slowly stretched upwards to pull out a thin honey thread, and when the honey is broken, it will retract into a ball and slowly dissolve in the honey.
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Properly preserved honey can be eaten after five or six years, and improperly preserved honey is not recommended to be eaten after five or six years.
If it is well-preserved pure honey, it can be eaten after five years, but if it is not stored properly, it cannot be eaten after five years; If it is a processed honey product, it cannot be eaten after five years. Judging whether honey can still be eaten after five years needs to be based on the specific situation, and cannot be generalized.
Honey can be divided into pure honey and processed honey to resist the defeat of products, if it is a well-preserved pure honey, under normal circumstances, after five years of trembling can be eaten, its Baumé degree is higher, the longer the preservation time; If pure honey is not stored properly, it is often opened, it is in frequent contact with the air, and it cannot be eaten after five years. Secondly, for processed honey products on the market, it is not edible after five years, and the shelf life is usually 18-24 months.
Types of honey
1. Bee species: honey can be divided into medium honey, Italian honey, black honey, etc. according to the bee species, among which the honey is brewed by Chinese honey bees, Italian honey is brewed by Italian honey bees, and black honey is mainly brewed by Xinjiang black bees and Northeast black bees.
2. Nectar source: Honey can be divided into multi-flower nectar (flower honey) and single nectar according to the type of nectar source, and can be divided into acacia honey, jujube nectar, lychee honey, longan honey, linden honey, rape honey, eucalyptus honey, vitex honey and so on according to the main nectar source.
3. Status: Honey can be divided into liquid honey, crystalline honey, honeycomb honey, etc., among which liquid honey refers to liquid honey, crystalline honey refers to honey crystallized into solids, and honeycomb honey is a capped honey spleen that is eaten with honey.
The above content refers to health - can honey be eaten after five years.
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If honey has been stored for a long time, as long as it has not deteriorated, it is edible and harmless to the body.
However, long-aged honey has slightly inferior nutritional value compared to fresh honey. It should be noted that if it is not mature honey or inferior products such as water, it will ferment and bubble and become sour after a long time, and it is inedible.
Although honey is a shelf-stable food, honey still ferments even after being concentrated at low temperatures due to the presence of osmophilic yeast. Also taking into account the influence of factors such as warehousing, freight, storage conditions and ** chain, manufacturers usually mark a shelf life of 18-24 months to ensure the safety and eating quality of the product during the period.
There are two main points that should be paid attention to when storing honey:
First, honey should be stored in a cool, ventilated and dark place. Generally speaking, the higher the storage temperature, the shorter the shelf life of the same food.
Second, honey needs to be sealed and preserved. Honey is particularly afraid of moisture absorption, so when storing honey, you must pay attention to sealing and preserving, if it is open, it must not be stored for a long time.
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