10.Fermentation

In China, everyone knows a tasty food named Zha cai (the pungent mustard stews), which is made by fermentation.  The taste of Zha cai is a combination of spicy, sour, and salty.  Zha cai is originated in Sichuan, China, and it became to a popular food in everywhere of the world.  Fermentation is an essential part of making Zha cai, and it looks like the same way to make Korean kimchi