John Gnadke, DuPont Pioneer harvest management and grain quality consultant, said that although bins may feature automated equipment, grain should be checked first on a weekly and then biweekly basis.
"We cannot take the human situation out of that.
It's important that we look into the bin, open the lid, have somebody start the fan and allow the air to come out," Gnadke
If humidity is detected in the air exiting the bin, the grain is in cold sweat.
"Temperature tables will not show a temperature rise at that point, but it will be in that cold sweat area.
If we can catch it early, we can run fans, and we can avoid any situations," Gnadke
recommends checking the bins once a week for four weeks to monitor the grain's stability and then biweekly thereafter.
"However, don't ever extend the biweekly check because the majority of people who do call say they forgot to do what I said and that turns out to be four, five or maybe even six weeks, and they have some damage in their grain bins," he
received several inquiries the past two Decembers asking why grain was beginning to re-wet itself.
"In all those cases I ask them how large their bin was, what size fan they have and how many days did they run it, and in most cases they all ran it about half the amount of time it takes to thoroughly cool the grain down," he