Will tea go bad at high temperatures? How can tea be stored for many years without going bad?

With the improvement of living standards, more and more people have formed the habit of drinking tea, but for many newcomers, how to store tea has become a big problem. So will tea go bad at high temperatures? How can tea be stored for many years without going bad? Let's take a look.

Will tea go bad at high temperatures?

Tea leaves can be better preserved if stored below 10℃. For every 10℃ increase in temperature, the aging speed of new tea will increase by 3-5 times. Dry tea leaves need a certain humidity to deteriorate. Fresh tea leaves are most likely to deteriorate at 37℃ because 37℃ is the most suitable temperature for enzymes! The moisture content of tea leaves should be controlled at about 10%. Too high or too low is not conducive to the preservation of tea leaves.

How to store tea for many years without spoiling

1. Green tea: It is not suitable for long-term storage. Buy as much as you drink. Generally, tea merchants have better storage conditions. You only need to buy enough for 2-3 months, and buy more when you have finished drinking.

2. Oolong tea: It is more durable than green tea. The storage period of lightly fermented Tieguanyin tea is similar to that of green tea. The storage period of traditional Tieguanyin tea and rock tea can reach 2-3 years, except for some particularly good oolong tea (which can be stored for more than 10 years in a sophisticated container). However, it is recommended that most teas be consumed within 3 years.

3. White tea: Suitable for storage within 1-2 years, but difficult to store for a long time because of its low water content, so it is particularly hygroscopic. The method of using a light-proof tin paper bag, a thick plastic bag on the outside, and a cardboard box to store loose tea is good, which can extend the storage time, but it takes up more space.

4. Black tea: Suitable for storage within 1-2 years. Usually comes in small packaging boxes and is not suitable for long-term storage.

5. Pu'er tea: Store in pieces. Usually, if you buy Pu'er tea in pieces, you will be provided with packaging suitable for long-term storage. For example, single cakes are packed in cotton paper, 7 cakes in a basket are packed in bamboo shoots, and 4 or 6 baskets are packed in cartons or laminated cartons. The storage time can exceed 10 years, or even more.

How to determine whether tea is expired or spoiled

1. Observe the color

First, look at the color of the dry tea. The normal color of tea is shiny and oily. If there are black spots, grayish white or other similar mold spots, it means that the tea has deteriorated. In terms of texture, expired tea is mostly light and has poor toughness. As for the soup color, if the tea is not old tea suitable for long-term storage, the soup color obviously deviates from the basic soup color and becomes thicker or darker, you should be careful!

2. Smell the odor

In addition to the normal tea aroma, if there are strange odors such as stale, moldy, burnt, smoky, sour, or rancid odors, you need to pay more attention.

3. Taste

The originally pleasant taste of spoiled tea will be greatly reduced, it will become more bitter, and its mellowness, aftertaste or astringency will also be significantly reduced.