Every coldroom system must have at least 1 temperature controller. A temperature controller consists of a temperature sensor and an electric on-off switch. When the interior temperature is too high, the coldroom temperature controller will send a signal to the compressor to turn on, activating the refrigeration cycle. Conversely, once the desired temperature has been reached, the controller will signal the compressor to shut off, interrupting the cycle.
Have you ever wondered how long can we store our foods in our refrigerator so that it is still safe to eat? Apparently the USDA