The tomato paste is concentrated in the evaporator and transferred to the product balance tank which feeds the system. The balance tank is unloaded with a Waukesha positive displacement pump which provides stuffing pressure to the WCB high pressure piston timing pump. Various models of WCB tubular heat exchangers are utilized during the heating and cooling process to minimize product degradation. The product is heated to sterilizing temperatures and held in the holding tube for the required time. After holding, the product is cooled to the desired tilling temperature using a combination of tower and chilled water as the cooling media. The product then flows to an aseptic surge tank and the tiller. Water from the water balance tank is used for CIP of the system and for system sterilization prior to running product.