What other ingredients are there in the ashes?

Ash contains tar, nicotine, etc. It hasn't volatilized yet

The residue of burning plants (herbs and woody plants) is called plant ash. This is an insoluble substance. Plant ash Fertilizer Because plant ash is the ashes of burning plants, almost all the mineral elements contained in plants are in plant ash. Plant ash is light and alkaline. It is easy to drift away with the wind when it is dry, easy to go with water when it is wet, and easy to cause nitrogen volatilization loss when it comes into contact with nitrogen fertilizer.

Extended data:

The role of soot:

Soot can remove oil stains. The essence of lampblack and plant ash is the same, both of which can neutralize oil pollution and achieve the effect of deoiling.

Ash also has a good therapeutic effect on skin abrasions.

The ashes can be turned into fertilizer, which can sterilize and promote the rapid growth of plants.

Baidu Encyclopedia-plant ash