With ever increasing fuel costs it is even more important to dry grain as efficiently as possible. For many years now the proven system of humidity control in bulk stores has seen drying change from a lengthy hit and miss system completely depend on weather conditions during the drying period. To a controlled continuous system with gas burners delivering drying air at a controlled humidity level, while this has dramatically reduced drying times and running costs in many cases there is still room for further reduction in expenditure.
When starting to dry grain down from high moisture levels, there is no point in switching on humidity controllers as ambient air with humidity as high as 85-90% will bring down moisture content to 19-20%. Then the burners can be employed to continue to reduce grain moisture to the required level.
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