Final cook temperature monitoring

John Stewart; Michael Matthews; Marc Glasco

doi:10.1117/12.665631

18 April 2006 Final cook temperature monitoring

John Stewart, Michael Matthews, Marc Glasco

Proceedings Volume 6205, Thermosense XXVIII; 62050N (2006) https://doi.org/10.1117/12.665631
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Fully cooked, ready-to-eat products represent one of the fastest growing markets in the meat and poultry industries. Modern meat cooking facilities typically cook chicken strips and nuggets at rates of 6000 lbs per hour, and it is a critical food safety issue to ensure the products on these lines are indeed fully cooked. Common practice now employs oven technicians to constantly measure final cook temperature with insertion-type thermocouple probes. Prior research has demonstrated that thermal imagery of chicken breasts and other products can be used to predict core temperature of products leaving an oven. In practice, implementation of a system to monitor core temperature can be difficult for several reasons. First, a wide variety of products are typically produced on the same production line and the system must adapt to all products. Second, the products can be often hard to find because they often leave the process in random order and may be touching or even overlapping. Another issue is finite measurement time which is typically only a few seconds. Finally, the system is subjected to a rigorous sanitation cycle and must hold up under wash down conditions. To address these problems, a calibrated 320x240 micro-bolometer camera was used to monitor the temperature of formed, breaded poultry products on a fully cooked production line for a period of one year. The study addressed the installation and operation of the system as well as the development of algorithms used to identify the product on a cluttered conveyor belt. It also compared the oven tech insertion probe measurements to the non-contact monitoring system performance.

Citation Download Citation

John Stewart, Michael Matthews, and Marc Glasco "Final cook temperature monitoring", Proc. SPIE 6205, Thermosense XXVIII, 62050N (18 April 2006); https://doi.org/10.1117/12.665631

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