The method of making handmade mud for New Year's Eve is to repeatedly knead the mud of various colors into strips, sheets and other shapes, and then knead it into delicious dishes such as cucumbers, tomatoes and meatballs with tools such as knives and forks.

Clay is a kind of cohesive soil, which contains less sand and is difficult for water to pass through, so it has good plasticity.

It is an important mineral raw material. Is a very small particle (

Clay is generally formed by weathering silicate minerals on the earth's surface. It is an important mineral raw material. It consists of various hydrated silicates and a certain amount of alumina, alkali metal oxides and alkaline earth metal oxides, and contains impurities such as feldspar, mica, sulfate, sulfide and carbonate.

The particles of clay minerals are fine, often in the range of colloid size, crystalline or amorphous, most of them are flaky, and a few are tubular and rod-shaped.

Clay minerals are plastic when wetted by water, can be deformed under small pressure and can remain unchanged for a long time, and have large specific surface area and negatively charged particles, so they have good physical adsorption and surface chemical activity, and have the ability to exchange with other cations.