Perishables often have high water contents and sea containers are mostly made of metals.
Together, this offers a great challenge when it comes to the application of RFID technology for real time temperature tracking.
In this trial, the objective was to study the RFID tag readability of three full loads of different foods (canned beans, fresh meat and frozen bread) inside an enclosed metal environment.
The following hypotheses were expected:
▫ Low and unpredictable readability for the load of canned beans due to the reflective nature of metal.
▫Low readability for the load of fresh meat due to the high RF absorption of the water content.
▫High readability for the load of frozen bread due to RF penetration through ice crystals.