How Pet Feed Extruder Machines Enhance Pet Food Safety and Production Quality？ - Knowledge

The high-temperature, high-pressure process of the dog food extruder machine acts as a "natural barrier" against harmful microorganisms.

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Pet food ingredients may contain harmful bacteria such as Salmonella, E. coli, and Staphylococcus aureus. Traditional processing methods, due to uneven temperatures and incomplete sterilization, struggle to effectively control microbial levels. However, the pet food processing machine creates a high temperature of 120-160°C within the extrusion chamber and maintains this temperature for 10-20 seconds. This "short-time high temperature" kills over 99% of harmful bacteria, far exceeding national pet food hygiene standards (Salmonella must not be detected). Data from a testing agency shows that the Salmonella detection rate in unextruded raw materials is as high as 15%, while after processing by the extruder, the detection rate is 0%, demonstrating a significant safety guarantee.

Inhibiting mold growth and reducing toxin contamination are another major safety advantage of the extruder. Raw materials are prone to mold growth due to moisture during storage, producing highly toxic substances such as aflatoxin. Traditional processes cannot remove these toxins. The high-temperature, high-pressure environment of the extruder not only kills mold but also disrupts the structure of some mycotoxins, reducing their toxicity. For example, aflatoxin degrades at temperatures above 140℃. The high temperature of the extrusion section of an extruder can reduce its content by 50%-70%, ensuring that the feed toxin content meets safety standards. Simultaneously, the moisture content of the extruded feed drops below 12%, significantly reducing the risk of mold regrowth and preventing toxin contamination at the source.

Pet food extruders also reduce the risk of foreign objects and impurities in raw materials. Modern pet food extruders are typically equipped with a comprehensive pretreatment system, with magnetic separators and vibrating screens at the feed inlet to remove metal impurities, stones, weeds, and other foreign objects from the raw materials, preventing pets from accidentally ingesting them and causing gastrointestinal damage or choking. Furthermore, the extrusion process of the extruder can encapsulate tiny impurities within the pellets or remove them in subsequent screening, further improving the purity of the feed.

For manufacturers, the safety advantages offered by the Floating Fish Feed Extruder process are the cornerstone of brand reputation. In the current climate of frequent pet food safety incidents, pet food processed using extruders is more likely to gain consumer trust due to its controllable safety, resulting in a repurchase rate that is over 30% higher than that of traditional pet food. Whether from the perspective of protecting pet health or from the perspective of long-term business development, the advantages of pet food extruders in improving safety are indispensable.

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