The reason is that cow dung contains combustible substances, otherwise it is impossible to burn. Dry cow dung mainly contains crude fiber, crude protein, nitrogen-free extract and crude fat. , also known as "grass residue". In fact, it is not much different from chewed bagasse, so it can be burned naturally.

Material combustion is conditional, that is, there must be combustible materials (coal, gasoline, straw, etc. ), combustion-supporting materials (air/oxygen, etc. ) and ignition source (lighter ignition, burning honeycomb coal, etc. ) At the same time, cow dung can be used as fuel, and it is indeed used as fuel for daily boiling water and cooking in some places in the northwest and southwest, because cow dung contains combustible substances, otherwise it is impossible.

Extended data:

Cow dung has other uses besides burning fire, that is, building a wall to make a sheepfold, or piling it in the open space in front of the house, and even being coded into various patterns.

Here in Tibet, cow dung has different meanings. It's like a promotion. A lump of cow dung actually has special value. It is said that cow dung has a special significance in the grassland area of northern Tibet, that is, the more cow dung on the wall of someone's house, the richer it may mean.