The word "coal bamboo" is mostly used in folding fans, handrails and other items, referring to bamboo that has grown for a whole year. After being cut down, boiled in water, naturally placed and shrunk, it is green and polished smoothly, hence the name "Polygonatum odoratum", which does not refer to a variety.
Secondly, "old Yuzhu" generally refers to "coal bamboo", or "dismantling materials", or using a big bamboo to make furniture materials.
Therefore, "coal bamboo", "dismantled materials" and "dismantled materials" can all be called "old Yuzhu".
The so-called carbonization of "carbonized bamboo" does not mean drying bamboo, or making it lose its properties and become a waste board.
Only after high temperature and high pressure treatment, the material is artificially dried.
The advantage is that even in the rainy and humid season in the south for two weeks, the carbonized bamboo after high pressure treatment will not be moldy. Secondly, carbonized bamboo feels good, and it feels porcelain when held in your hand.
"Fried Polygonatum odoratum" is also called "oil bamboo". As the name implies, it is low-temperature frying, but it is very particular about oil temperature.
It will not affect the properties of bamboo, but it will feel a little sticky.
This kind of bamboo has been very popular in the past few decades, and the price is not high, so it can have the so-called "Republic of China color" with high cost performance.