Thermal process (pasteurization) is an important process step for most food, beverage, dairy, and cheese applications. The importance of pasteurization has been recognized since the early 1800s with the boiling of raw milk. Pasteurization is typically done to kills harmful target organisms by a combination of heat and time exposure. This heat treatment can result in prolonged product shelf-life. Pasteurizer system can be integrated within a manufacturing process as a batch or continuous process. It has an equally important role in other specialty food, beverage, wine, brewery industries including juice concentrates.
Placer Process carefully considers the unique requirements for each application. Does the pasteurization application require vat pasteurizers, plate and frame heat exchangers, shell and tube heat exchangers, tube and tube heat exchangers or a combination of those different technologies to achieve the heat process goal? The purpose of the thermal process has to recognized and can including the destruction of disease-causing microorganisms (pathogens) for shelf stability, texture change, or change of fluid characteristics such as odor.
Pasteurization process typically starts with a raw fluid at ambient temperature, heat to the required process temperature, hold at that temperature, then can exit the process as chilled or hot depending on the filling application. Milk and dairy applications typically exit the pasteurizer chilled whereas some food and beverage applications exit the pasteurizer hot. Requirements for pasteurization of milk products are outlined in the Grade A Pasteurized Ordinance (PMO). Designs consider fluid properties such as low acid or high acid, hold times from 2 seconds to 10 minutes, the application of energy recovery (regeneration), and control systems. The utilities for a thermal process are typically more robust than heating and cooling utilities for other processes. The proper attention to utility flow rate and temperatures combined with a modern control system will lessen the potential for flow and temperature upsets which will increase solids loos and lose production time as they occur.
Sanitary Process System Retrofit Experts
Placer Process team has various experience in designing and building thermal process pasteurizer systems for multiple manufacturing applications from the small, medium, to large scale systems. We can develop a pasteurizer system including its process components, accessories, instrumentations, piping, hold tube, control systems, and its associated hot and cold utility systems.
Incorporating your process requirement, existing plant capabilities, and project timeline, Placer Process can offer either a modular skid-mounted pasteurizer system or an alternate field-installed system. Depending on the application, our various pasteurizer modules can incorporate the low-temperature long time (LTLT), high-temperature short time (HTST), higher heat short time (HHST), ultra-high temperature (UHT), or aseptic technology. Our typical pasteurizer system is following the hygienic sanitary standard practices, however, we have the ability to modify the system requirements for your project needs. Our process system piping is typically offered as stainless steel. We can provide alternative materials for specialty applications. Contact Placer Process today to find out how we can help you solve your toughest process challenges.