Haber Technologies Inc. is launching a new grain drying and aeration system called the DRI-Stack, a new way to bin dry and aerate corn with high heat, during the 2019 Farm News Ag Show in Fort Dodge today. DRI-Stack’s announcement comes as Iowa farmers face a shortage of liquid propane necessary to dry crops harvested from damp fields after a rainy growing season. Approximately one-third of the world’s grain is damaged due to excess moisture, Haber Technologies said in a news release.