Some of the "flaws" of the purple clay pot are not really flaws

Some of the "flaws" of the purple clay pot are not really flaws.

1. There are small white sand grains or white powder in the pot

Some friends received a new pot, the pot has white granular powder, thinking that it is a chemical pot, in fact, it is not.

This is related to the production process of the purple clay pot. When the purple clay pot is fired, the lid and the pot will be fired as a whole in order to prevent the lid from deformation and damage.

In order to avoid the situation that the lid and the inner edge of the spout can not be opened normally under the high temperature of thousands of degrees, quartz sand will be scattered along the lid before the purple clay pot enters the kiln, which is the white particles that some teapot friends see.

Quartz sand is non-toxic and harmless, and quartz powder is used in the production of glass dishes, glasses, thermos bottles and many other food grade glass products. So don't worry, before use, clean with water and open the pot normally.

Second, there are scratches on the spout and color difference on the lid

The spout position and lid of the purple sand pot have sandpaper polishing marks, which are obvious to the light and feel a little hairy. This is not a defect or defective product. This is the whole process of the purple sand pot.

Because people now have higher requirements for the workmanship of the teapot, in order to better tightness between the lid and the body, the whole mouth will be carried out, and the lid will be deliberately made larger when doing, and the whole mouth will be polished until it is just put in. These marks and color differences are the marks of the whole mouth.

Therefore, the color difference and polishing marks on the lid and spout are not problems with the pot, so there is no need to worry about it.

Third, the bottom of the pot line marks

The line marks at the bottom of the pot are also a process of making purple clay pot - pushing the wall and scraping the bottom, "wall" refers to the inner wall of the pot, and "bottom" is the inner bottom of the pot.

The body cylinder and the bottom of the purple clay pot are bonded with fat mud. There will be some fat mud left on the splice at the bottom of the pot. For the excess fat mud and the uneven shrinkage marks on the inner wall of the pot, tools will be used to clean up, so some traces will be left.

4. There are black spots on the body

Recently, there are also pot friends to buy a pot, look carefully at the purple clay pot, there are small black spots on the pot, to the Douyin to find someone to identify that it is a defect, in fact, understand the pot of old friends know that this is not a defect, is the original mineral mud did not pickling, with its own minerals.

The small black spots are some iron and other metal elements in the purple sand mud, which will precipitate iron molten substances after firing, but prove that the raw ore has not been pickled.

If there is sand blasting, there are also criteria for judging defects, and a little mineral can not be classified as defective products with a one-size-fits-all attitude.

5. There are white spots on the body

Purple sand pot to the light will see bright flashing white spots, is it adding chemical materials?

The white spot is the mica crystal after the purple clay pot is fired, and the black spot on the pot is the same as the mud material, which is originally in the mineral material, and it is also proved that it is the raw ore purple sand mud material.

The quartz, mica, iron and other substances contained in the mineral layer of purple sand mud will melt and precipitate at high temperature, so there will be white spots and black spots on the surface of the pot.

6. Shrinkage folds can be seen on the surface of the pot

Pot friends to see more will know that the purple sand clay material has a certain shrinkage rate, especially the red clay purple sand pot, carefully will see the shrinkage of the texture.

The shrinkage of the red mud is relatively high, there will be wrinkles after sintering, coarse look at the surface of the pot is flat, look closely at the side there are many tight natural shrinkage texture.

Of course, not all clay POTS are "wrinkled", the veins, the aging time, the production process is different, the pot is different, or smooth, or wrinkled, or delicate, each has its own merits.