The application of Pet Food Binder follows standardized industrial technological procedures. Operators adjust application plans according to pet food categories including extruded kibbles, baked food and cold-pressed pellets, raw material formulas and pellet specifications. The whole process contains five major stages: premixing and activation, liquid blending, forming and initial curing, drying and final shaping, cooling, sieving and quality inspection. All parameters must be strictly controlled to secure binding performance while meeting pet food safety standards. Simplified operations can be referenced for homemade pet food. The first step is precise proportioning and dry powder premixing, the foundation for uniform binding. The industry standard addition ratio ranges from 1% to 3%, with slight variations for different food types. Extruded kibbles feature loose texture, so the binder dosage is controlled at 1% to 2%. Low-temperature cold-pressed pellets need firm texture, requiring 2% to 3% binder addition. Dosage can be moderately reduced for low-fat plain food and slightly increased for high-fat food to lock grease. After proportioning, powdered Pet Food Binder is loaded into mixing equipment alongside meat meal, grain powder, dietary fiber and nutritional powder. Low-speed mixing lasts 3 to 5 minutes to fully blend dry materials, preventing agglomeration of Pet Food Binder and subsequent partial over-hardening or loose areas.
The second step is liquid blending and activation of binding activity. After dry premixing, purified water, animal oil and liquid nutritional agents are gradually added, followed by high-speed mixing for 5 to 8 minutes. Water and temperature are required to activate the binding activity of Pet Food Binder, which evenly coats every raw material particle to fully combine all ingredients. Humidity is strictly controlled during mixing, and the overall raw material moisture is maintained between 20% and 25%. Excess humidity results in soft pellets sticking together, while insufficient moisture fails to activate binding capacity, leading to forming failure and large amounts of broken grains.
The third step is mechanical forming and preliminary curing. The uniformly mixed raw material slurry is delivered to corresponding equipment based on pellet types. Extruded kibbles adopt high-temperature extruders. Under high temperature of 120–150°C and high pressure, raw materials are extruded and shaped rapidly. Pet Food Binder cures quickly under high temperature to build stable pellet structures. Low-temperature baked food and cold-pressed pellets use tablet pressing equipment for forming under ambient or low temperature. The toughness of Pet Food Binder fixes pellet shapes without high-temperature damage to nutrients. Forming speed should be controlled in this stage to ensure uniform size, thickness and consistent structure of every kibble.
The fourth step is dehydration drying and deep shaping. Freshly formed pellets contain certain moisture and remain relatively soft, so they are sent to drying equipment for water removal. Drying temperature varies with manufacturing processes. Extruded kibbles are dried at 80–100°C while baked food is processed at 60–80°C for 20 to 40 minutes. Moisture content of finished pet food is controlled below 10%. This stage enables full curing of Pet Food Binder to strengthen pellet compactness, removes excess moisture to prevent mold and bacterial growth, and completely stabilizes pellet shapes.
The final stage covers cooling, sieving and finished product quality inspection. Hot pellets after drying need natural cooling down to room temperature, during which particle structures get further stabilized. Sieving equipment then removes broken grains, powder residues and deformed pellets to guarantee complete finished particles. Sampling inspection is conducted to test hardness, broken grain rate and binder residue, making sure products meet pet food standards. The workflow can be simplified for homemade pet food: dry premixing, adding water to form dough, pressing for shaping and low-temperature drying. Low addition dosage must be strictly followed for safety and controllability.
