What kind of wine does the yellow wine in the so-called "yellow wine delivery" of traditional Chinese medicine mean?

Yellow rice wine is made from grain through the interaction of distiller's yeast and medicinal liquor. Its main component is ethanol, but its concentration is very low.

Yellow rice wine also contains a very small amount of methanol, aldehydes, ethers and other organic substances, which have a certain impact on the human body. In order to minimize the residue of these substances, people generally blanch rice wine to about 60-70 degrees, because the boiling point of aldehydes, ethers and other organic substances is generally around 20-35 degrees, and even methanol is only 65 degrees, so these trace organic substances contained in rice wine are blanched. Therefore, drinking yellow wine while it is hot is good for health.