Miller Magazine Issue: 122 February 2020

72 ARTICLE MILLER / FEBRUARY 2020 easy. Sampling can be a way to go but nowadays wireless sensors provide the feedback on our cellphones in real time. As described above in the “farm storage” paragraph, mo- nitoring is possible through cognitive algorithms that co- rellate the change of grain condition with insect and mold development. Silo fumigation is a challenge similar to ship hold fumiga- tion described above. Gas recirculation, silo sealing and gas monitoring are elements of key importance for fumigation success. Gas recirculation must be applied in bins of all sizes as it was proven that even on a 5 meter silo the gas will fluctuate when the temperature difference between night and day is significant and internal air currents are created. THE FLOUR MILL OR ANY OTHER FOOD AND FEED FACTORY Stored product insects love flour mills as they can always find food there and there is a vast selection of tubes, mac- hines and crevices to hide and multiply. Stored product insects may enter through open doors and windows as in most cases they can survive around a food factory but the main infestation sources for mills are two: the grain to be processed and pro- duct returned from the market. Grain must enter the mill free of infestation, by maintaining a thorough inspection and fu- migation plan on the external grain silos. The returned pro- duct must always be fumigated effectively before being re-pro- cessed. It is proved that in most ca- ses, even when preventive measures are applied, the food factories get some level of in- Photo 2: Monitoring and prediction analytics for stored grain by centaur.ag Photo 3: Remotely controlled heat treatment by centaur.ag