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Honey expiration has the following manifestations:
1. Honey is caused by ethanol after deterioration, so it has the taste of alcohol.
2. If the pure honey is caused by carbon dioxide, there will be a lot of bubbles when the honey deteriorates, and the pure honey will appear to expand the bottle.
3. After the honey deteriorates, it will become more and more diluted, if the pure honey is very viscous, then the pure honey after mildew will become thinner, the key is that the sugar in the pure honey has become other substances.
4. The general pure honey is not easy to have a significant strange taste, even if there is a very weak strange smell, if the honey is spoiled, there will be an obvious strange smell.
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Honey generally bubbles and becomes sour when it expires. After the honey is spoiled, it will be fermented to produce a large amount of acidic substances, and the strong sour smell can be smelled after the cap is opened. Moreover, honey will produce a large amount of carbon dioxide after spoilage, and a large number of bubbles will generally appear in the honey at this time.
Honey is a supersaturated solution of sugar, which crystallizes at low temperatures, glucose is the one that crystallizes, and fructose is the part that does not.
Honey is rich in nutrients, mainly fructose and glucose, minerals, organic acids, vitamins, and rich in carbohydrates and proteins.
It is recommended that honey be stored in a cool, dry, clean, ventilated place at a temperature of about 5 10 °C. The container for honey should be tightly covered to prevent air leakage and reduce the contact between honey and air.
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If it is well preserved, there is really no change in the expiration of honey. However, if the expired honey deteriorates, there will be certain changes, such as smelling alcoholic and having bubbles on the surface.
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1. Thinning: The biggest change in deterioration is that the honey has become thinner, the mass multiplication of microorganisms, and a large amount of water will be produced in the process of microbial decomposition, so the texture continues to thin, and some honey with serious deterioration may even become as clear as water.
2. The taste is wrong: the spoiled honey tastes wrong, the taste will become sour, the honey will have a little sourness, but it is not obvious, if there is an obvious sourness, it is most likely spoiled.
3. Alcohol: Yeast will decompose sugar into alcohol, and with the increase of time, the alcohol flavor will become bigger and bigger, if there is a strong alcohol smell, it means that it has been seriously deteriorated and can no longer be eaten.
4. A large number of bubbles: honey will have a small amount of bubbles, and it is normal to have bubbles, but with the passage of time, the carbon dioxide produced when the yeast gradually decomposes the sugar, will produce a large number of bubbles, and then the honey will deteriorate.
Precautions for buying honey
Color: Many people judge the quality of honey by color, thinking that dark color is good honey, and vice versa. In fact, the depth of honey is just a difference in the classification of pollen absorbed by bees.
For example, the honey of lychee flower is lighter in color, and the honey of longan flower is darker.
Sweetness: It would be a mistake to judge whether honey is pure or not based on the sweetness of honey. Some black merchants in the market have mixed white sugar honey is actually very sweet, but if you taste more, you will find that the sweetness of white sugar is not the same as the sweetness of honey.
The above content refers to Encyclopedia - Honey.
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It's actually very simple, just look at the packaging.
As a food, honey is commonly used as a food, and the shelf life is marked on the package, which is generally 18 months or 2 years, which is a food with a long shelf life.
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Determining whether honey is expired can be seen by smell, appearance, and green tea.
1. Smell. Spoiled honey has a lot of yeast in it, and it will have a very strong wine and vinegar flavor. So if you smell honey that it has a bad taste, you can throw it away.
2. Appearance. After severe spoilage, there will be many gray bubbles on the honey, indicating that the organic matter in the honey has been decomposed, fermented and bubbled, and turned into a gas spill. Moreover, normal honey is very viscous and very compact, and the honey becomes very thin, which means that it has deteriorated, and it is not recommended to eat.
3. Green tea inspection. Prepare the brewed green tea, pour it into a cup, pour in the honey again, stir well with a spoon, if the liquid turns black, it means that the honey has spoiled and cannot be eaten.
Precautions for honey preservation
1. After buying honey home, store it in non-metallic containers such as ceramics and non-toxic plastics, and cannot use iron. Honey should be kept in a cool, dry, clean and ventilated environment. Since honey is a weakly acidic liquid, weakly acidic liquid can have a chemical reaction with metal, and it can come into contact with lead during storage, so it should use non-metallic containers such as ceramics, glass bottles, non-toxic plastic barrels and other containers to store honey.
2. Honey should be sealed and stored, and the tools used to take honey should be washed and wiped dry to prevent water from entering, and it is easy to ferment and deteriorate when water is dissolved in honey.
3. Good honey can generally crystallize when it is below 15 18 and turn into white or light yellow crystals. The shelf life of honey is currently 18 months for bottled honey. However, bees with high cap maturity concentrations can also last for many years.
4. After preserving the honey and opening it. Usually eat, depending on how often you eat. Remember to prepare 2 spoons, one for digging honey and one for stirring and flushing.
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Determining the expiration date of honey is actually very simple, the date of bottled honey can be seen on the jar, and the shelf life of honey is generally 18 months or 2 years. However, honey contains acids and high concentrations of sugars, and has a low water content, so it may exceed its shelf life if it is stored well.
Honey can also go bad when it expires, and spoilage is also easy to judge, spoiled honey smells of alcohol.
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Summary. Pro-honey is a natural food that usually does not expire, but it may spoil or lose its qualities.
Pro-honey is a natural food that usually does not expire, but it may spoil or lose its qualities.
Here are a few ways to tell if honey has expired or gone bad:1Observe the appearance:
Fresh honey usually has a clear yellow or pale yellow spike color and looks more viscous. If the honey goes bad, it may become cloudy or discolored, or the honey becomes thin, which are among the indicators. 2.
Smell and smell: Fresh honey has a sweet and floral smell and no odor. If the honey goes bad, it may have some sour or moldy taste, and it should not be eaten at this time.
3.Taste the taste: Fresh honey tastes sweet and very tangy.
If the honey goes bad, the taste may become sour, bitter, or moldy, and it should not be eaten.
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Summary. Specifically, there are the following methods: 1. Smell the taste of honey:
This is one of the important ways to tell whether honey has deteriorated, because whether honey is within the expiration date or beyond the expiration date, only after opening the sour taste or alcohol, it means that the honey has deteriorated and can no longer be eaten. 2. Texture change: honey will ferment after being infected by yeast, and the texture of honey after fermentation will change greatly, and thinning is the best witness of honey deterioration, so in the process of eating honey, if you find that the texture of honey is much thinner than when you first started eating, don't eat it anymore, because it has deteriorated.
Specifically, there are the following methods: 1. Smell the taste of honey: This is one of the important ways to distinguish whether honey has deteriorated, because whether honey is in the shelf life or beyond the shelf life, only after the simple dismantling stove is opened, there is a sour taste or alcohol taste, which means that the honey has deteriorated and can no longer be eaten.
2. Texture change: honey will ferment after being infected by yeast, and the texture of honey after fermentation will change greatly, and thinning is the best witness of honey deterioration, so in the process of eating honey, if you find that the texture of honey is much thinner than when you first started eating, don't eat it anymore, because it has deteriorated.
What are the specific methods to distinguish real and fake honey are as follows: 1. Look at the luster and color: honey contains some proteins, biological enzymes, minerals and pollen and other components, so it does not look very bright, and it is pale yellow or amber, and it is better to have a light color.
Fake honey is boiled with white sugar or passed off with syrup, and the color is bright, generally light yellow or dark yellow. 2. Smell the smell: Real honey smells pure and natural, with a faint floral fragrance, while fake honey smells pungent and peculiar.
3. Crystallization identification: fake honey is not crystallized, but the white sugar added to some fake honey will also precipitate under certain conditions of eggplant liquid, forming a precipitation at the bottom of the bottle and burying it. 4. Taste identification:
Real honey is sweet and delicious, with a slight sour taste, and the crystalline block is crispy when it enters the tooth, and it melts when it is contained, while the fake honey has a bitter and astringent taste, and the crystalline block chews like granulated sugar, and the sound is crisp and loud.
After the honey deteriorates, the viscosity decreases, obviously thinned, there will be a thick layer of white bubbles on the surface, if you feel that a single method is not at ease, it is recommended that you smell the taste at the same time, the spoiled honey has lost its original aromatic smell, open the bottle where the honey is stored, there will be an obvious smell of alcohol, mixed with a kind of food rotten sour smell, the smell is very pungent. >>>More
1. Thinning: The biggest change in deterioration is that the honey has become thinner, the mass multiplication of microorganisms, and a large amount of water will be produced in the process of microbial decomposition, so the texture continues to thin, and some honey with serious deterioration may even become as clear as water. >>>More
Honey deteriorates, which manifests itself in two ways:One is that the taste becomes sour, and the other is that the honey becomes thinner。After long-term storage, honey can be judged by the above two points. >>>More
Depending on the season, the color of honey harvested from different fruit varieties is also different. Look at the color carefully: Real honey is transparent or translucent in color. >>>More
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