1. Yanshan yeast is the crystallization of the most advanced technology in the yeast industry in the mid-1970s of Lesford Company in France. Yanshan yeast is a French swallow brand quick-drying yeast with excellent quality, fast fermentation speed, unique fermentation flavor, stable product performance and good appearance. These characteristics may lead to the relatively high price of Yanshan yeast.

2. On the other hand, Angel Yeast is a brand used by Lesford in France, and its price is relatively close to the people.

Yeast is a biological fermentation product. Yeast fermentation in dough mainly uses carbon dioxide produced by yeast cell life activities to make dough swell.