leftover biscuits can be made into ice cream, snowflake crisp, biscuit crisp, biscuit puff, biscuit jelly and so on. Cookies are baked with flour, water or milk without yeast. They can be used as storage food for travel, navigation and mountaineering, and are also very convenient and applicable for soldiers in wartime.

The simplest product form of historical Biscuit is a mixture of flour and water, which was found in ancient tombs in ancient Egypt around BC4.

The truly shaped biscuits can be traced back to Persia in the 7th century, when sugar-making technology was just developed and was widely used for biscuits. Until the tenth century AD, with the conquest of Spain by Muslims, biscuits spread to Europe, and then spread in various Christian countries.

By the 14th century A.D., biscuits had become the favorite snack of all Europeans, and the smell of biscuits was everywhere from the royal kitchens to the streets where civilians lived. The modern biscuit industry started in England in the 19th century because of the advanced navigation technology. During the long voyage, bread was not suitable as reserve grain because of its high water content (35%-4%), so a kind of bread with low water content was invented.