Considering that Wooster, Ohio-based Green Field Farms is run by a cooperative of Amish and Mennonite farmers who still use traditional on-farm methods, you might think that the company’s milk processing plant would also harken back to older times. But this couldn’t be further from the truth. The 12,000-square-foot plant — located in Fredericksburg, Ohio, down the street from the cooperative’s headquarters — actually was built just three years ago to meet Green Field Farms’ specific production needs.