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How to Verify Cold-chain Compliance

Manufacturers that produce refrigerated product generally take a great deal of care to ensure their product is handled whilst it is under their supervision, with the greatest care. Ingredients are generally used within 72 hours of receipt and packaging is flushed with gas or liquid to ensure food safety is achieved.

Given all this care is taken it is surprising that too many food manufacturers then place their product on a truck where it may travel for many days to be unloaded, warehoused in a customer facility (again for many days) and then moved onto a display cabinet where it can again sit for many days. During this travel and storage the integrity of the packaging normally remains intact but temperature abuse either through indifference or through poor refrigerator equipment maintenance can cause the product to deteriorate in eating-quality, freshness, nutrient value and even safety. Micro-organisms can incubate as a product warms and ultimately cause sickness or even death.

HISTORY - Old technology to resolve this problem involved chart recorders on refrigerated vehicles and equipment to monitor the air-on and air-off function of refrigeration plant and neither of these are good enough protection and rarely if ever, are properly used to verify cold-chain compliance. Chart-recorders are almost never scrutinised adequately until after something goes wrong which does not protect a brand and certainly does not protect consumers. Finding out what went wrong after a mishap has occurred is poor food safety practice. Similarly, monitoring air-on and air-off function of refrigeration plant does not ensure the environment in which product is stored is less than 3degC.

HOW TO ENSURE COLD-CHAIN COMPLIANCE - Data Acquisition Networks (DAN)(www.danmonitoring.com) provide a GPRS data management system that sends alarms when things go wrong and delivers to the desk of stakeholders, information that verifies cold-chain compliance. As well as monitoring temperature in which product is held DAN systems also provide 'indicative product temperature' which provides food scientists with even better traceability and understanding in the event temperature failure occurs. DAN systems send data to a website through the GPRS network as often as is required. Through this means, verification data is available to all stakeholders allocated a user password.

About the Author

Peter Davis is an experienced business person with many years of practical experience generating outstanding commercial profits in difficult business environments. He is a Director and owner of a technology monitoring business and an adviser to many organisations. Above all else he is a practitioner who understands that a sensible, logical and pragmatic approach followed by measured implementation is the pathway to success

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