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A process and apparatus for preparing a surface coating composition for an animal food. The process involves combining, in-line along a food processing line, liquid fat and a dry additive to provide a liquid fat-dry additive composition, which then is combined with a liquid additive to provide a sur

A process and apparatus for preparing a surface coating composition for an animal food. The process involves combining, in-line along a food processing line, liquid fat and a dry additive to provide a liquid fat-dry additive composition, which then is combined with a liquid additive to provide a surface coating composition. The composition is coated on the food.

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What is claimed is: 1. A method comprising: (a) combining a liquid fat and a dry additive in-line along a processing line; (b) forming a liquid fat-dry additive composition; (c) combining at least one liquid additive with the liquid fat-dry additive composition formed in (b) in-line along the proce

What is claimed is: 1. A method comprising: (a) combining a liquid fat and a dry additive in-line along a processing line; (b) forming a liquid fat-dry additive composition; (c) combining at least one liquid additive with the liquid fat-dry additive composition formed in (b) in-line along the processing line; (d) forming a surface coating composition; (e) coating an external surface of an extruded and dried animal food with the surface coating composition formed in (d) along the processing line; (f) producing a coated animal food; and wherein said animal food comprises a dog food, cat food, dog treat or cat treat. 2. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining probiotic microorganisms with the liquid fat. 3. The method as recited in claim 1, further including surrounding or encapsulating dry additives in the liquid fat prior to combining at least one liquid additive with the liquid fat-dry additive composition in-line along the processing line. 4. The method as recited in claim 1, further including mixing the at least one liquid additive with the liquid fat-dry additive composition in-line along the processing line prior to coating the external surface of the food material with the surface coating composition along the processing line. 5. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining tartar control additives with the liquid fat. 6. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining a dry additive selected from the group consisting of meat solids, dry animal digest, palatants, vitamins, anitoxidants, and any combination thereof. 7. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining the dry additive and a liquid animal digest. 8. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining the liquid fat with a dry additive that is unstable in the presence of the liquid additive. 9. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining the dry additive with a liquid fat that includes a minor liquid wherein the dry additive is not unstable in or sensitive to the minor liquid. 10. The method as recited in claim 1, wherein combining the liquid fat and the dry additive in-line includes combining the dry additive that is sensitive to a processing or environmental condition. 11. The method as recited in claim 10, wherein the processing or environmental condition is selected from the group consisting of moisture, and pH change. 12. The method as recited in claim 1, wherein coating the external surface includes continuously and homogenously coating the surface coating composition on the animal food.