MINNESOTA, July 12, 2017 - In its latest newsletter, Minnesota-based Al-Corn Clean Fuel announced its undenatured yield averaged 2.911 gallons of ethanol per bushel in the second quarter. The co-op said this moved production closer to the “magic number” of 3 gallons of fuel ethanol per bushel. The increased yield was achieved through enhanced focus on current operations and improvements from a major expansion, which added new fermenters and addressed flooding issues.