Hot filling and cold filling are two methods of contract packaging (or co-packing*) perishable food products and liquids. These methods are not to be confused with fill temperature; while hot and cold filling are preservation methods, fill temperature affects the viscosity of the liquid and thus impacts the accuracy of the packaging machine.
To correctly conclude which filling method is best suited for a product, it is imperative to understand the key differences between the two.
HOT FILLING
