Many tea lovers who like to make tea with the purple sand teapots inadvertently find cracks on the teapot, which is very distressing.
Sometimes even just a punch with boiling water, the purple sand teapots suddenly cracked. The frequency as in the case of this sudden appearance of cracking in the winter seems to be higher, which is what causes it?
The reasons for the cracking of the pot are manifold:
1, it may be time to buy did not notice the details, inherent in itself;
2, using the process accidentally bump into the teapot is not found, after long-term use, it is evident from the crack.
Most of the reasons for the cracking of the teapot in winter are the low temperatures in winter. In the case of rapid thermal expansion and contraction, especially in the case of heat or cold unevenness, it is easy to have different degrees of expansion or contraction in different parts, high hardness, low elongation, and strong brittleness. Cracks are prone to occur.
In short, in the winter, with boiling water directly into the teapot brewing tea, there may be a phenomenon of cracking of the teapot, which is also a case of "Jingpo".
Especially when using these kinds of teapots, it is more prone to cracking:
| The long-time unused teapot, because it is exposed to the air for a long time, the teapot body is excessively over-dried, the purple sand gap will dry out, and the relative structure gap is also large.
Especially particles large segment clay teapot, because the iron content is low, the structure of the kettle body will be looser, and special attention should be paid before use.
| Some special muds and teapot shape are also lead to cracking the kettle body.
The most typical one is the Zhuni teapot. The Zhuni teapot has a high iron content. When the firing is performed, the body shrinks more and the air permeability is low. When the temperature difference changes sharply, it is more likely to crack than other mud materials.
In addition, the wall of the teapot is thin, and some teapot walls are uneven (such as Gongchun, etc.), should also pay special attention when in use.
So what should we do?
1, In a low temperature environment, do not use hot boiling water to pour directly on the outer wall of the teapot. Because direct poured over the outer wall of the teapot, teapot pores will be closed on instant hot water poured in. The temperature of the teapot rises rapidly, so that the air enclosed in the teapot also heats up rapidly. The pressure in the kettle is intended to be excreted through the pores of the kettle body. At this time, the gas pressure is not discharged smoothly, so that it will put the teapot to burst.
2, teapots that have just been rinsed with cold water should not be used for brewing tea or use hot boiling water to pour directly on the teapot. They should be placed in a warm room temperature to raise the temperature of the teapot. After that, the brew tea is the safest.
3, be careful not to allow the boiling water to continuously fix pour a part of the teapot to avoid heat unevenness.
The key point is to warm the teapot before using the teapot, and develop a good habit of warm teapot:
Method 1: Fill the teapot with warm water of about 50 degrees Celsius, cover the lid, let the water overflow and wet the teapot body, and let the teapot body adapt to the warm water temperature for one to two minutes.
This is to make the stomata of the teapot full of water and increase the tension of the teapot, so as to prevent the temperature rise of the pot too fast, so that the pressure leakage can not be decomposed and the teapot body is broken. When the teapot is adapted to the temperature, it can be boiled water into the teapot.
Method 2: Before brewing in the normal use of the teapot, inject about half of the room temperature water into the pot. Then inject the boiling water to the full pot, cover the lid and gently shake it a few times to allow it to be evenly heated. After pouring the water out, it can be brewed normally.
In fact, protecting the teapot does not require very cumbersome operations. It is precisely one more careful warm teapot in each use process so that can protect our beloved teapot.