D

Fluid B out

Polished stainless steel

Figure 9. (a) Plate heat exchangers with product flow schematic, (b) schematic of tubular heat exchangers, and (c) cutaway section of swept surface heat exchangers. Source: Ref. 5, courtesy of Cherry-Burrell.

monitoring and control by skillful and highly trained operators is a must for such an intricately orchestrated system.

Although the Dole system had been the mainstay for aseptic filling into metal cans, subsequent regulatory approval for the use of chemical sterilants such as hydrogen peroxide to sterilize the surfaces of various paper, plastics, and laminated packaging materials opened the door to a wide array of commercially available aseptic filling systems that produce shelf-stable liquid foods in a variety of gable-topped, brick-packed, and other novel package configurations. Filling machines designed for these packaging

Polished stainless steel

Scraper blade

Insulation

Media zone Product tube

Product zone Media cylinder

Scraper blade

Insulation

3-Way valve

High pressure positive displacement pump

00 c

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