What you don't know about the dog food production process (puffing process)

Shrimp/Fish Feed/Aquatic Feed Project

Commodity granular dog food is the most commonly used pet food for pet lovers, but how is it produced? Is it safe for dogs to eat? This is a concern for most pet lovers.

The production and processing of dog food refers to the process of using a variety of different methods to mold a variety of raw materials or single raw materials to meet the nutritional needs, palatability and digestion and absorption of pet dogs, and maximize their potential nutritional value and use value. As one of the categories of pet food, dog food is processed in a very wide range, including pet snack food, snacks, teething sticks, bone grafts, nutrients (powder), dry food, wet food, canned food, etc. In order to maximize their nutritional functionality, manufacturers process different raw materials in different forms and degrees. Today we will first talk about puffed dog food.

The processing of puffed dog food products is basically divided into three categories: physical method, chemical method and microbial method. The physical method mainly refers to the extrusion, heating, crushing, bonding, etc. of raw materials; Chemical methods for starch denaturation, protein degradation, etc.; The law of microbiome is to let the raw material ferment. The first application of puffing process to dog food production was in 1957, when it was first used by Americans in order to improve the digestion and utilization of food by dogs. Compared with traditional animal food, the biggest difference is that the extrusion process  breaks through the inherent general flat mold or ring die extrusion process, and as a special pet food dog food manufacturing method, it is designed into the manufacturing process of dog food, so that dog food can form a pet food that can promote better absorption of pet dogs, more scientific nutrition, and correspondingly higher palatability.

A complete dog food production process includes several main links such as raw material reception, initial cleaning, crushing, weighing, mixing, puffing machine pressing, spraying, weighing and packing of finished products.Shandong Arrow Machinery Co.,Ltd. has such a complete production chain.

In the production and manufacture of dog food, the puffing process is one of the most core parts. Dog food raw materials are diverse, different forms, in order to save energy consumption, improve production capacity,wet twin screw puffing technology ,is increasingly adopted by manufacturers.

In the dog food process, the use of screw extrusion puffing can be divided into two types, one is the dry puffing method, and the second is the wet puffing method. In the production and processing, the dry extrusion method only needs to add water directly before the raw material is puffed, and does not need to add steam, and the raw material is not pre-quenched and tempered before entering the puffing chamber; The law of wet puffing requires raw materials to be pre-tempered before entering puffing, to improve the temperature by steam or water, pre-curing, quenching refers to the damp heat effect on raw materials through steam, is the starch in raw materials pre-gelatinization, protein degeneration, raw material substance softening, in order to improve the puffing granulation effect of dog food and improve the quality of puffing.

AYT series screw puffing machine is our company relying on 20 years of pet and aquatic feed processing equipment experience, combined with the international advanced twin screw extrusion technology ,research and development of pet food aquatic feed puffing equipment. The equipment is composed of four parts: feeding silo, feeder, temperer and extrusion puffing machine. The mixed material enters the feeding silo, and the material in the feeder bin is fed into the biaxial differential temperer evenly and continuously through the feeder for tempering. There is a steam inlet at the bottom of the temperer, and there is a liquid filling port at the top of the temperer, which can replenish the necessary liquid to the temperer. The material is quenched and tempered in the temperer for a period of time and then enters the extrusion chamber through the feeding port, and then through the screw transportation, compression, stirring, shearing and other effects, the material gradually matures or dissolves; In the curing area, after the action of pressure and temperature, the material is further matured, and the fat, protein, starch, etc. change, and finally extrude by the mold mouth, and cut and formed by the cutting system.

Because dog food has special requirements for shelf life, the water content of extruded particles is generally required to be between 18% and 25%, so it is necessary to carry out drying and dehydration process after extrusion to ensure the quality of dog food.


Our company designed high-efficiency cross circulation dryer for pet food aquatic feed, which features: energy saving and high efficiency, cross circulation, independent air chamber, upper heating box, automatic slag removal, fully open insulation door, easy to clean, easy to install.


Our company Shandong Arrow Machinery Co., Ltd. specializes in the research and development, production, sales and application promotion of pet food and aquatic feed engineering projects. Products are sold to 118 countries and regions around the world, serving more than 1100 companies around the world, with more than 20 years of industry experience team, the company adheres to the "sincere, promise" purpose, to serve customers.

Our company can provide different types of pet food aquatic feed engineering solutions, according to customer requirements to provide a yield of 1-10 tons of different sizes of turnkey plant solutions.

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