Rodriguez, Amorrortu and lvarez (2011, p. 73) affirm that -controlling the cold chain is a fundamental aspect for all companies in the food and health industries". Pre-cooked products, those through wich raw materials undergo a huge rate of manipulation and which in many cases the shelf life is extended, need a developed and rigorous cold chain. Following these authors there are lots of reasons why temperature operations diverge from what was planned: -the doors of the refrigeration unit remaining open for an excessive period of time, equipment fails to cool correctly due excessive amount of ice, [...] failure of the temperature control's thermocouples [...]".