Praxair Inc. has expanded the options available to meat and poultry processors with the introduction of a cryogenic liquid nitrogen injection system for meat mixing. The proprietary ColdFront meat mixer cooling system is based on the market-proven carbon dioxide systems that Praxair has offered and supported for years. A detailed model of a converted meat mixer will be on display in booth 5631 at the International Production and Processing Expo (IPPE) in Atlanta this January.

Heat generated during mixing and grinding accelerates bacterial growth and leads to off-flavors, decreased shelf life and spoilage. Precise temperature control during meat mixing and grinding is a key factor in preventing the growth of microorganisms and preserving the integrity of the meat product. Due to the cryogen control mechanism and the high refrigeration efficiencies of the bottom injection system, customers will experience improved product quality. Additionally, reduced waste and repeatable patty formation are possible because of consistent product weights that transfer directly to measured cost savings. This low-capital investment, using either liquid nitrogen or liquid carbon dioxide, is easy to operate, clean and maintain. It may also be customized for specific operations.

All Praxair freezing and chilling systems are designed to maximize productivity while providing for efficient use of cryogen, minimal space utilization and enhanced sanitation functionality. 

Praxair is the largest industrial gases company in North and South America, and one of the largest worldwide, with 2013 sales of $12 billion. The company produces, sells and distributes atmospheric, process and specialty gases as well as gas and equipment related technologies to the food- and beverage-processing industries. Praxair is a recognized leader in the commercialization of new technologies that bring productivity and environmental benefits to a diverse group of industries. For more information about Praxair and its ColdFront cryogenic meat mixer cooling systems, visit or call toll free: 1-800-PRAXAIR.