Honey wine is a kind of wine. Honey is diluted with water and fermented to produce alcohol. The sugar content of honey is extremely high, and the extremely high osmotic pressure makes it difficult for microorganisms to reproduce. After honey is diluted with water, the sugar concentration decreases, and yeast can reproduce under appropriate osmotic pressure and start fermentation. Even if honey is only diluted with water, it can make dormant natural yeast fall into honey in the air for reproduction and fermentation. But artificially adding yeast can reduce the chance of failure.