Benefits of measuring LOF
Temperature measurements are slow. Typical quality control consists of placing a temperature probe in the product (destructive) or between products. After equilibrium is obtained, the temperature can be read out. This approach is time consuming. The LOF can be continuously measured making it a reliable and accurate indicator of the freezing quality.
Efficient and reliable quality control
Conducting temperature measurements is labor intensive and prone to manual errors. The conventional temperature measurement requires personnel to place the temperature probe correctly in or between the products at regular time intervals. These manual measurements are prone to errors or inaccuracies. Real-time monitoring of the LOF provides consistent measurements and consequently consistent freezing quality of the products. This allows to allocate personnel more efficiently and reduce personnel costs.
Surface vs. Core information
Typical temperature measurements make use of temperature probes or near-infrared sensors to monitor the surface temperature. These measurements are not representative for fast freezing or defrosting processes, layered products or large products (e.g. blocks of products). The surface temperature can differ significantly from the core temperature fouling the measuring equipment. Our freezing sensors measure through the product providing information on the crystallization throughout the entire product. Any unfrozen parts at the core of the product will be detected.