How to distinguish an inferior purple clay pot? How to identify the advantages and disadvantages of

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Shoddy, slippery and waxed.

The texture of the purple clay pot is fresh

It is rounded, with a matte visual effect, and there are many evenly distributed fine special particles similar to metallic luster. The touch is delicate but not slippery, the lid rotates flexibly and smoothly, and makes a slight "silk" or "rustling" pleasant sound, with the lid tapping the body of the purple clay pot The sound is crisp and pleasant, the sound is short, and the sound stops immediately after the tapping.

How to identify the purple clay pot:

1. The raw ore particles of the pot should be clear. The purple clay pot should have a grainy feel. The raw ore particles of a good pot look unevenly distributed and are more natural.

2. The purple clay pot is impurities, which usually appear as black particles and are unevenly distributed on the surface of the pot, so many really good pots are ugly when they come out of the kiln.

3. The purple sand pot body is heavier, and it has a sense of weight in the hand.

At first glance, the texture of the real purple clay pot is fresh and round, and the vision has a matte effect, with many evenly distributed fine particles similar to metallic luster. The inner wall of some handmade pots has radial lines from the central dot to the periphery, which is formed in the process of processing.

Second touch, the real purple clay pot feels delicate but not slippery, and the fake purple clay pot feels rough or slippery; For example, the feel of ordinary clay is rough, the feel of porcelain is slippery at the first touch, and if you press and rub it a little hard, it will feel astringent. This is due to the different manifestations of the molecular structure.

Three turns, turn the lid, the lid of the real purple clay pot rotates flexibly and smoothly, and makes a slight "silk" or "rustling" pleasant sound, and the clay fake "purple clay pot" makes a dull "clatter" sound.

Fourth, tap the lid on the body of the pot, although some people disapprove of this, but this is very effective. The sound of the real purple clay pot is crisp and pleasant, the sound is short, and the sound stops immediately after the tapping; The fake purple clay pot of ordinary clay has a dull and short percussion sound;

The sound of porcelain percussion is more crisp than that of purple sand, a bit like the sound of metal impact, which is difficult for ordinary people to distinguish. But there is a very obvious difference that the sound wavelength of porcelain is obvious, and after the tapping ends, the sound still lasts for a few milliseconds, while the real purple sand stops immediately.

Five certificates, the general ** purple sand pot has a handwritten certificate of the maker, the certificate is usually rice paper, brush writing, calligraphy handsome, this is because calligraphy is a good craftsman compulsory course, good purple sand pot added value is more reflected in the calligraphy and painting skills, stamped with seals. The inscription of the seal is consistent with the inscription of the bottom of the purple clay pot.

To choose a good purple clay pot, pay special attention to the following points:

The water should be smooth, the water should be decisive, and there should be no "drooling" (there are water droplets slipping down the mouth after the water is broken).

The center of gravity should be stable, and the end should be handy.

The design of the mouth and cover is reasonable, and the tea is easy to enter and exit.

The size of the capacity needs to be suitable for one's own use.

Sand pot identification: first look at whether the spout, handle and body are balanced.

The connection between the spout and the body, the connection between the handle and the body should be handled naturally and without any flaws, just like a whole. To see if the kettle is balanced, first hold the handle of the kettle and feel comfortable to pick it up, then remove the lid of the kettle and buckle it upside down on the table to see if the spout, spout and handle are in a straight line. The tea people call it the "Three Mountains".

Second, look at the mud.

A pot of good muddy water, warm, dignified, cordial, pleasing to the eye, quaint to relatives.

Third, listen to the sound.

Due to the different firing temperatures of the purple clay pots, the hardness will be somewhat different, so the sound will be crisp, high-pitched or dull. Whether it is crisp or turbid, there is no certain standard. However, according to the experience shared by the circle of friends who have played the purple clay pot for many years, the pot with a crisp and loud sound is more suitable for brewing tea with a higher fermented aroma; The muddy pot is suitable for brewing low-flavored and heavily fermented teas.

Fourth, look at the charm.

A closer look at this pot will make you feel like you're looking at a work of art, and a good pot can show nobility from quiet elegance; From the simplicity and heaviness, it makes people feel stupid; From the simple lines, there can be a reverie back to basics.

Fifth, look at practicality.

At the end of the day, a teapot is still a tool for making tea. A good teapot should feel comfortable to pick up. When pouring out the tea soup from the pot, the water flow should be smooth and the water column should be stable and undispersed, commonly known as "seven inches of water does not open".

A good kettle should be cut quickly. When the air outlet on the lid is pressed, the water column closes quickly and there is no residue in the spout.

Sixth, look at the decoration.

Generally, purple clay pots have more or less decoration, such as relief, painting, inlay, inscription, seal, etc. These decorations should blend in with the body of the pot, not be very obtrusive, and should be based on the beauty of the whole pot.

At present, the purple clay pots seen on the market can be roughly divided into two categories. One is the defective pot that has no preservation value, and the other is the purple clay pot with preservation value.

The material of the defective pot is often low-grade mud such as clay pot mud and vase, and its color is oily and bright, and the plate is sluggish, and the color of the inner and outer layers can be clearly seen after being broken. The ** of this kind of pot is often between a few yuan and dozens of yuan, and there is no preservation value at all. The mud used in the real purple clay pot is purple sand mud produced in Dingshu Town, Yixing.

Purple sand mud is a unique material in Yixing, which has all the necessary chemical composition and mineral composition of pottery in composition. From the microscopic observation, it is found that the primary deposits of purple sand mud are quartz, clay, mica and hematite. The particle composition of these mineral deposits makes the purple mud have outstanding technological functions such as good plasticity, high green strength, and reduced dryness.

Because the purple clay pot body is not glazed, it still has a large water absorption rate and porosity after firing. It has been determined that the water absorption rate of the purple sand teapot is between. Therefore, the finished product has outstanding gas adsorption function and air permeability function, and is used to brew tea, good color, fragrance and taste.

So how to identify the authenticity of purple sand?

One is to look at the color, the color of pure purple sand should have a jade-like charm, whether it is purple, yellow, or red, its light quality is like oil, the more rubbed the more moist.

Listen to the sound, put tea leaves in the purple sand pot, and then pour boiling water, the purple sand pot makes a sandy, dumb and heavy sound, and the sound is hoarse to clarify that the raw materials have good air permeability, the interior is not crystallized, and the fragrance of the tea can be adhered to, and it is not easy to change the taste. If after irrigation, there is a metallic sound or a porcelain-like crisp sound, it can be concluded that it is not purple sand or purple sand is not pure.

The third is to smell its taste, the teapot mixed with chemical materials has a peculiar smell, or use Tieguanyin into the pot, after soaking for an hour, the tea changes color or has a peculiar smell, which is a fake purple clay pot.

Fourth, by feel, the hand induction of the pure purple clay pot is lubricated and round, comfortable and natural, although there are particles but still very round, after the traditional hand-processed grinding of the sand powder, its feel and the feel of the machine to process the sand powder is different. After a long period of soaking, a good purple sand can show a deep, clumsy, and oily temperament, while non-purple sand or purple sand impure pots cannot be raised at all.

First of all, look at the surface of the purple clay pot, the appearance of the purple clay pot is almost not bright, which will give people a very rough feeling, and the fake clay pot, in order to look good, will generally be waxed and polished, and it will look very bright In addition, the purple clay pot contains trace elements such as quartz and mica.

First, look at the density. The different densities lead to different weights of purple clay pots of the same volume. The different contents of various oxides and proteins in the minerals lead to different densities of the fired purple sand, and the clay like purple sand is heavier, while the real purple sand mud will form aggregates and bubbles in the inner wall structure after firing, so the density is slightly smaller and the upper hand is slightly lighter.

Second, look at the texture. The purple sand pot fired by the real purple sand mud is like bean paste, no matter how fine the purple sand looks like it still has a semi-suspended granularity, it will not be too smooth to the touch, but it will not hold hands, the purple sand-like clay feels astringent to the touch, and the one mixed with chemical raw materials is too smooth. 3. Listen to the sound.

Purple sand is different from porcelain, without special glazing, after sintering, the surface will naturally form a "mud door" slurry skin with a sense of adhesion, which is not leaky but breathable, and the sound conduction is not as crisp as porcelain, but it is not stuffy, while the purple sand clay is stuffy.

The purple clay pot can be identified by the material, appearance, and process.

A good purple clay pot is usually made of real purple clay mud, which is delicate and uniform, and has a deep color. You can touch the body with your hands to feel its smooth and delicate texture. A good purple clay pot has a unique and delicate design, the fit between the body and the lid is tight, the shape of the spout is reasonable, and the water is poured smoothly.

The proportions of the body are harmonious and the lines are smooth.

A good purple clay pot is made with fine craftsmanship, and there are no obvious bubbles, cracks or flaws in the body of the pot. The fit between the lid and the spout is tight, the spout is elegant, and the water does not leak. After a good purple clay pot is used, the water flow is smooth, and there is no dripping in the pot.

The water flow is smooth and even, and when the lid is closed, the water does not leak out of the spout. After a good purple clay pot is used for a period of time, the body of the pot will gradually absorb the aroma of tea, producing a unique charm. It feels comfortable in the hand and feels balanced and stable when held.

Precautions for buying a purple clay pot

1. Certification: There are many imitations in the purple sand pot market, so pay attention to whether there are ** certification marks when purchasing, such as "Yixing Zisha", "Zhengxiao Socks Minzong Zisha", etc. At the same time, choose a reputable merchant or a specialized purple clay pot shop to make a purchase to ensure that you can buy it.

2. Material selection: Purple sand pots are usually made of Yixing purple sand mud, and Yixing purple sand mud is divided into various types, such as vermilion mud, stone mud, sand mud, etc. Different types of purple clay pots have different features and values, and can be chosen according to personal preferences and uses.

3. Pot type and capacity: Zisha pot has a variety of different pot types and capacities to choose from, such as flat-bottomed pots, round pots, square pots, etc. When choosing a pot type, consider the purpose of use, such as tea or coffee, as well as personal preferences.

In terms of capacity, you should choose according to your own needs and the amount of brewed drink, and don't buy a pot that is too large or too small.

4. The body and lid of the pot: Observe the craftsmanship and details of the body and lid of the pot to see if there are lettering, carvings or delicate textures, etc., which are the characteristics of a well-made purple clay pot. Attention should also be paid to the fit between the body and the lid to ensure a good seal.

First of all, look at the surface of the purple clay pot, the appearance of the purple clay pot is almost not bright, which will give people a very rough feeling, and the fake clay pot, in order to look good, will generally be waxed and polished, and it will look very bright In addition, the purple clay pot contains trace elements such as quartz and mica.

1. Look at the color: the color of pure purple sand, whether purple, yellow, red or the color between the two should have a jade-like charm, its light quality is a gloomy light, like oil, the more rubbed the more moist, can not wax, can not polish, can refer to the material effect of old jade, the rarer the material, the more valuable, because of limited resources.

2. Listen to the sound: The purple clay pot is the top product of pottery, so the sound of the pot is the sound of pottery. After making tea, the sound is sandy, dumb, and deep, not as crisp as metal sound or porcelain, and the hoarse sound indicates that the material has good air permeability, and the interior is not crystallized, which can maintain the fragrance of the tea and is not easy to change the taste.

3. Feel: The hand induction of the purple sand pot is smooth and round, comfortable, although there are particles but very round, the purple sand particles are generally suitable for 32-60 mesh, through traditional manual processing, the feel of the stone grinding sand powder and the feel of the sand powder processed by the machine are different.

4. The effect of raising a pot: good purple sand, through the pot to make a little tea, and then used for a cloth dry wipe can see the matte color, oily is very heavy, the longer the time to raise, the deeper the color quality, simple, until the production of the pot aura, and people through the temperament.