Extruder food is a kind of successful product that double-screw extruder is applied to food processing. The double-screw extruder can adjust the temperature, pressure, material humidity, feed rate and other parameters at any time according to different raw materials and product quality requirements during the production process. Most of the snack foods are made of corn, wheat, rice and other grains, and potatoes. In addition, many kinds of seasonings are processed into products with various flavors and shapes. According to the different production process, it can be divided into direct puffed snack food, co extruder snack food, indirect puffed snack food and processed and reprocessed food.
1. The double-screw extruder of directly expanded snack food is relatively simple. The raw materials are extruded by twin-screw and formed into porous products. After baking and dehydration, a layer of delicious flavoring can be sprayed on the surface.
The perfect process for processing such products is: mixing, feeding, extruding, lifting, drying, flavoring and packaging
2. Co extrusion snack food, co extrusion processing is a product where different materials are combined at the extrusion template. When the raw materials are extruded, hollow tubes are formed. The sandwich materials with good fluidity made of cheese, chocolate, etc. pass through the sandwich pump, and the filling is injected into the middle of the tubes while the extruded materials are extruded, forming extruded sandwich foods.
The perfect process for processing such products is: mixing, feeding, extruding (core injection), lifting, drying, flavoring and packaging.
3. Indirect puffed snack food should be a semi-finished product. During the processing of such food, the material is cooked in the extruder and the temperature is lower than 101 ℃. In this way, when the material passes through the template, the water in the material cannot be turned into steam and expanded. In the later stage, the water is removed by frying or other methods to obtain the product.
The relatively perfect process for processing such products is: mixing, feeding, extruding and expanding, breaking, lifting, frying, seasoning and packaging
4. Double-screw extruder processing of reprocessed food, the puffing process also shows its versatility in the processing of reprocessed food. The so-called reprocessed food is to expand the materials first, then further process the expanded materials into other states, and then add other materials to complete the processing of new products.
