Milk is an extremely temperature-sensitive product. It begins to spoil if its temperature is allowed to change more than a few degrees. During deliveries to distant receivers such as farmers’ markets and supermarket chains, milk’s temperature needs to remain at a constant 36-37°F throughout transit, otherwise receivers will return the milk as unsafe for sale as a health risk. For this particular milk supplier, they often ship products where proprietary software is unavailable, and on average, it takes about four days for the fresh milk to reach store shelves. With this risk in mind, the milk supplier wanted to find an accurate temperature measuring and alarm solution that would continually monitor their product as well as provide on-site proof of quality to receivers.
That’s why the milk company installed I-Plug Plus USB Temperature Data Loggers from CAS DataLoggers, Chesterland, Ohio, in the back of their trailers to closely monitor milk temperature. Drivers enclose the loggers into their self-adhesive pouches and place them directly onto the crates, four per truck. During deliveries, the internal sensor in each unit accurately monitors the product across a temperature range of -22°F to 158° at a high 0.5°C accuracy. Their lightweight and compact design makes for an easy fit among the gallon containers, each powered by a 1-year battery. Installed this way, the temperature data loggers provide good coverage of the shipment and continually monitor the product throughout transit.