Taking natural materials as an example, the cutting chamber has a certain thickness, which is the same as the shape of the pot body. At that time, Jing Zuo and Su Zuo were particularly particular about this. Good products can float on the water without sinking, so "floating on the water" was especially pursued in the process at that time, and now it is also one of the appreciation standards. Measure its depth with a ladle, or measure its shoulders or so, and you can know whether its evisceration skills are in place.

If only one hole of the evisceration is slightly enlarged, and the kettle body is mainly at the kettle shoulder, it is difficult to detect modern tools, and it can be immediately judged whether it is a modern imitation or a new product.

2. The bottle mouth is different.

There are two kinds of bottles: big ones and small ones. It is said that big mouth is earlier than small mouth. Although there are different opinions, its characteristics remain unchanged. The pot hole and the pot mouth must be concentric double circles, and the pot hole is off center or the hole is not round enough. Most of them are not genuine, especially advanced pots. The top and bottom of the ladle must be the same width as the neck before cutting.

There are two kinds of spout, flat and slightly concave, both of which are 90 degrees from the bottle body, that is to say, concave north and south. These two performances are only seen in the production style of Qing dynasty, and the later imitations are quite close, while the modern imitations are mostly blunt and round.

3. Different feet.

The bottom of the hookah in Qing dynasty is various and beautifully made, just like the bottom of the official kiln porcelain in Qing dynasty. Although there are many styles, the most important thing is that they all have quite strict workmanship. Different pot types with certain soles are exquisite masterpieces. This phenomenon is even more obvious if it is made by Guanbao.

4. Different body shapes.

Although there are many styles of snuff bottles, there are many styles that are the same except that the official pot also presents the shape of an eggplant-shaped cover pot, which can only be distinguished by material, technology and age. The lines of the old pot are very smooth and natural, and the pot shape is regular and generous. Although the details of the sculpture are different, the big shape has not changed much.

5, the skin light is different.

Because hookah is handed down from generation to generation, it has been used for a long time. In addition to storage and cellar storage, there are still some snuff powder left in it, which has become granular and the smell of smoke has faded. The pot body is also old and covered with old marks. For example, the pot loses its luster in the sun, the pastel enamel falls off slightly, and there are slight scratches on the pot body, which is also the focus of identification.

You can feel the trace of its use from its hardness. If it is agate, tourmaline and crystal, because of its high hardness, the handed down products usually have bright skin and few scratches. If it is turquoise, the surface of Shoushan stone with low hardness has usually lost its luster, which is also a way of identification.