Case Study

RSS

A critical component of production is a pH enhancement process that forms. It is a natural constituent of meat and is considered GRAS. The ammonium hydroxide elevates the pH of the meat to eliminate E.Coli and significantly reducing other pathogens such as Salmonella and Listeria monocytogenes. The dosing of ammonia gas is controlled by coriolis mass flow meters. The lack of repeatability and accuracy was a very significant problem for controlling the dosing equipment. If E.Coli or other bacteria were to become established, the cost of a meat recall would cost millions and stop production.

Ammonia gas is a simple application and posed no application challenges. The task was to reliably measure the flow of the meat slurry to ensure safe levels of ammonia gas being added. The Promass I Coriolis mass flow meter was selected since the customer wanted a single tube straight-through meter design for cleaning and sanitary requirements.

After significant testing, the Promass I has proven to be a reliable and accurate solution. All other Coriolis meters have been removed from the meat slurry applications. The Promass I is now used for controlling all meat slurry processes. The risk of contaminated meat has now been lowered and more accurate ammonia dosing has also saved money in chemical costs. Endress+Hauser also supplies all plants with the non-glass pH sensor for in-line pH sampling of the meat slurry.