Biscuit is made with wheat flour, sugar and grease as the main raw materials. Match with dairy products, eggs, essence, leavening agent and other accessories. After mixing, forming, baking and other processes, it is made into crunchy food with less than 6% moisture. Biscuits have become the most popular fast food among people because of their rich nutrition, crispy taste, various flavors, convenience in eating, portability and storage. And becomes indispensable food for military supplies, travel, and fieldwork. As a convenience food, there are many different flavors. Different flavors can not be separated from a variety of condiments, so the Salt & Sugar sprinkler and Salt & Sugar return machine becomes the essential machine equipment to improve the flavor of cookies. Salt & Sugar sprinkler and Salt & Sugar return machine is used to sprinkle salt or sugar onto the surface of the cookies with a rotating brush before entering the oven, to make the cookies more characteristic flavor. This machine is equipped with a device for recycling surplus materials. By adopting a mesh belt type instead of PU belt, does better in ingredient recycling, avoids ingredient squandering, easy to clean. The Salt & Sugar sprinkler and Salt & Sugar return machine are indispensable equipment for increasing the flavor and taste of biscuits. The salt and sugar sprinkler and Salt and sugar return machine spread amount can be adjusted, and the speed of the conveyor belt can be adjusted, according to the speed of the biscuit to adjust the amount of spread. Salt & Sugar sprinkler and Salt & Sugar return machine is the first choice for biscuits to spread salt and sugar, which is easy to operate and applicable to a wide range.