What is the reason for the cracking of purple clay teapots? How to reduce the cracking of purple clay teapots

Zisha teapots are the most popular tea-making utensils nowadays, but many people experience cracking of the teapots. So what is the reason for the cracking of the teapots? How to reduce the cracking of the teapots? Let's take a look.

What causes the purple clay teapot to explode?

1. Cracking during the process of making the pot: If the clay is too crisp, it will crack during the process of making the pot. However, this situation basically should not happen. If it cracks, how can you make a pot?

2. Cracking during the drying process: The shrinkage of a purple clay teapot is divided into two parts: drying shrinkage and firing shrinkage. Drying shrinkage accounts for about one third of the total shrinkage, so cracking will occur during the drying process.

3. Cracking during the firing process: If the green body is not completely dry and contains moisture, the water vapor will expand during firing and cause cracking.

4. Cracking during use: caused by sudden cooling or heating.

How to choose a good purple clay teapot

A good purple clay teapot, first of all, has clay material, which is the foundation of a purple clay teapot. The original clay material has silver stars, which are formed after the mica chips contained in the purple clay ore are fired. The second is the sandy feeling, and the purple clay is named for its rich sand content. The third is that there will be some black spots, the purple clay ore is rich in iron, and there will be some iron after firing!

How to reduce the cracking of purple clay teapots

Before we use a purple clay teapot to make tea, we first fill it with 1/3 of clean water, then fill it with boiling water to make the teapot evenly heated, and then pour it out. It is such a simple step, which not only warms the teapot, but also cleans the teapot and tea sets. Finally, put tea leaves in the teapot and you can brew tea normally. The reason for doing this is that if a teapot has not been used for a long time, the clay will be very dry, and the water in the teapot will be less and not moisturizing enough. After warming the teapot and then putting boiling water in, you can effectively avoid cracking under high temperature.