Green tea is a non-fermented tea, so "fresh and tender" has become its main color. Drinking a cup of green tea on a hot summer day immediately makes people feel refreshed and refreshed. If you can't drink the green tea at home, you are worried about improper storage and spoilage. see
How to store drops of green tea in general, some say frozen, some say refrigerated, are there any reasonable suggestions?
After buying tea, many netizens found that the tea smelled after a short time, and they thought that they had been deceived and bought aged tea, which may actually be caused by improper preservation, because tea has strong adsorption.
As far as green tea is concerned, green tea is a non-fermented tea, and the shelf life is usually one and a half years, but in the case of room temperature, after the green tea opens, it will be slowly oxidized in contact with the air, and if it is not stored properly and the water content exceeds the standard, it may change its flavor in less than 2 months.
Therefore, green tea must be tied in a plastic bag and placed in the refrigerator, the temperature of the refrigerator is 0-5 °C, do not store it open, because the refrigerator will store other foods, if the bag is stored open, the final tea may be integrated into the taste of various foods.
In addition, when the tea is taken out of the refrigerator, do not open the can immediately to take out the tea, wait until the tea can and the room temperature is about the same before opening the jar, if you open the jar immediately, because the internal and external pressure difference will make the water vapor condense, further increase the water content of the tea, and shorten the preservation time of the tea.
Generally speaking, only lightly fermented or non-fermented teas, such as fragrant Tieguanyin, yellow tea, and green tea, are best stored in the refrigerator.
Tea like white tea and black tea can help the transformation of tea over time, and it is said that the older it is, the more fragrant it is, and it can also make the tea taste more mellow, so it only needs to be stored in a dry and ventilated place, and there is no need to put it in the refrigerator again.
In addition, black tea is a fully fermented tea, and after fermentation, the aging rate will be relatively slow, so it can be placed at room temperature and dry and ventilated.
No matter how you preserve green tea, you must avoid these points
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1. High temperature. Green tea contains a variety of ingredients that are beneficial to the human body (vitamins, amino acids, etc.), but once the temperature is too high, the components in the tea will be destroyed, and the appearance, aroma and taste will be greatly reduced.
2. Sunlight. It is best not to store tea in transparent glassware, because once exposed to sunlight, the esters and pigments in the tea will be easily oxidized, and the quality of the tea will deteriorate.
3. Air. The tea leaves of green tea contain substances such as chlorophyll, vitamins and esters, and these substances are very easy to combine with oxygen in the air, once these substances change. The soup color of green tea will turn red, darken, and the nutritional value will be reduced.
4. Damp. Humidity is the most taboo point for storing tea, as a green tea with strong moisture absorption and moisture recovery, once the relative humidity exceeds 70%, mildew will occur (generally speaking, 60% relative humidity is the most suitable for storing green tea).
5. Peculiar smell. Green tea contains palmitase and terpene dilute compounds that are very easy to adsorb other odors, so it is best to store green tea in a sealed manner, otherwise green tea will absorb other odors and cannot be removed, affecting the aroma.
To sum up, whether the tea should be stored in the refrigerator can not be generalized, but to be combined with the nature of the tea, the current spring, the same problem that plagues many tea lovers is, what tea should be drunk? For some beginners, if you don't know how to choose tea, you may wish to refer to some old tea customers often drink tea.