Caloris Low Spore Powder Production Process Receives Dairy Innovation Award

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The award recognizes the implementation of the Caloris low spore powder production process at the LSDP plant in Canyon, Texas.

The patent pending process has allowed LSDP to consistently and consistently produce low spore milk powders while maintaining continuous, uninterrupted operation of spray drying systems. LSDP is a joint venture between Hoogwegt and Lone Star Milk Producers.

Caloris President and CEO Jim Peterson said he was excited to share this recognition with LSDP and happy that the low spore powder process has contributed to the success of the Canyon plant.

Presence of spores

Caloris said that many dairy processors face the challenge of achieving consistent daily production of milk powders with low bacterial spore counts. The presence of a low level of spores in milk powders is difficult to avoid due to the presence of spores in the incoming raw milk supply, this number being multiplied by 10 simply by concentrating the powdered milk.

A critical challenge is to avoid the exponential growth in the number of bacteria and spores to unacceptable levels that develops during a daily cycle of milk powder production due to the growth of biofilms.

In particular, evaporators provide ideal growing conditions for biofilms formed by vegetative bacteria, and after a maturation period of around 10 hours, these biofilms begin to contaminate the milk with which they come in contact for the remainder of the cycle. production capacity of the evaporator.

CIP cycles

The Caloris process includes clean-in-place (CIP) cycles of the evaporator system, which eliminate operation in the presence of mature biofilms in the evaporator system before they begin to contaminate the dairy product with spores. The process setup allows these CIP cycles to occur without interrupting powder production from the spray drying system.

“The concept seemed to us to be simple, robust and reproducible,”Cody Gruwell, general manager of the LSDP Canyon plant, said during the award ceremony.

“We could clearly eliminate the risk of operating with the presence of mature biofilms which, in a traditional evaporation system, serve as a source of spore contamination of the dairy product.”

LSDP is one of two dairy processors in the United States to have implemented the Caloris system.


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