1. Why is it easy to crack when the pottery pot is boiling water?
A: in fact, the question is why the pottery pot can’t be directly burned on an open fire, especially a high-temperature open fire that can quickly boil water.
The basic reason is that the pottery pot is a brittle material, and it expands and shrinks in nature. The sintering degree of ceramic body is very high when the sintering temperature is over 1100 ℃, and the space for shrinkage and expansion is very small. Once the local contact with open fire, the temperature rises rapidly, and the volume becomes larger. The tension generated will destroy the ceramic body and lead to cracking.
Only by adding relevant materials to the raw materials can the toughness and high temperature resistance of the ceramic body be enhanced, can the pot be directly put on the open fire to boil water.
2. How to solve the problem of “drooling” in teapots?
A: when the teapot is collected after pouring tea, the water flows down the spout. This phenomenon is called “drooling” by some pot friends.
Whether a pot will drool or not is closely related to the shape of the spout, which is determined by the shape of the spout. Straight mouth is the most common drool, such as Xishi, Longdan and Shipiao. They all use straight mouth, so almost all of these pots will “drool”.
In fact, “drooling” is not a “problem” at all, and there is no such thing as “solving”. Because the spout of some pot type is determined not to drool in terms of shape, but in other types of spout, “drooling” is a normal phenomenon.
3. Is Jianshui purple pottery good at hand shaping?
A: Jianshui purple clay has high mesh number, fine texture, strong viscosity and low plasticity, but it can still be kneaded by hand.
In fact, there are already some hand-held teacups on the market, and some pot making studios have also produced very personalized hand-held teapots.