- by vinux
A pot friend asked: Online it says that the sand material of a purple clay teapot has slow heat transfer, whether stroking or holding, it will not be hot. But my pot is just like a normal porcelain pot or a pottery pot, it still gets hot! Is it true that a real good purple clay teapot really doesn’t get hot?
A teapot friend asked: Online it is said that the sand quality of a purple clay teapot has slow thermal conductivity, and no matter if it is picked up or held, it will not scald the hand. However, my teapot burns my hands just like a normal porcelain or pottery teapot. Is it true that a good quality purple clay teapot really does not scald one’s hands?
Below is the experience of a pottery friend:
At first when this teapot friend started collecting purple sand teapots, he was frightened by the saying that purple sand teapots don’t burn hands. Because when he filled up his newly purchased purple sand teapot with boiling water and it still burned his hand, he thought it was a fake and threw several good-looking teapots in a fit of rage. Later on, while drinking tea with a friend, his friend said that the purple sand pot he bought cost thousands of yuan. When his friend felt the boiling water with his hands and still found it hot, he teased him that the pot is fake and almost had a fight with his good friend over this.
This pot friend had not been involved in the purple sand teapot industry for a long while because of this incident. Occasionally, when he looked at the dozen or so pots he had collected at home, he would be angry because each one felt hot after boiling water was poured in, wishing to smash them all. Later, he went to a private business owner’s office to do some work. The boss invited him to his office for tea, and on the tea table was a very delicate and high-end purple sand teapot. The boss happily informed him that it cost nearly 40 thousand yuan. When he flipped it over, he found out that it was the work of a master-level figure.
The boss poured tea leaves into the pot and filled it with boiling water. The pot friend tried to touch the body of the pot with his hand, which was also hot. He thought that the boss had been fooled by fake goods.The boss poured the tea into a small cup, picked it up and took a sip. He felt that the aroma of the tea was extraordinary. Immediately he praised the boss’s tea very much. The boss did not make any sound and brewed another cup in porcelain cup and gave it to him for tasting. Unexpectedly, the taste was totally different. From then on, this pot friend began to think seriously about the fallacy that purple sand pot does not burn hands.
Actually, after reading the story above, you can roughly understand that strictly speaking, the heat conduction of a purple sand teapot is just slightly slower than that of glass and ceramics. Some pot friends may have misunderstood or believed in rumors.
Actually, it should be like this:
(一) Although purple sand is slow in transmitting heat, it does not have the function of absorbing heat. If filled with boiling water, it may not be hot to the touch within a few seconds, but if the time is longer, the heat will be transmitted out. How can it not be hot to the touch?
(2) The so-called non-burning purple-sand pot can only be double-layered, but any heat conductor can do the job as long as it is double-layered. This should not be the specialty of purple sand.
(3) Experiments show: 1. There is a difference between touching a purple sand teapot filled with boiling water in winter and hot days. It can be held on the pot for more than ten seconds in winter, but it will shrink hands as soon as it is touched in hot days. 2. Elderly people or those with thick hand skin are not afraid of scalding. 3. The body of the teapot will definitely be scalded, but the handle will not be scalded.