The M.A.C Creamery became a commercial operation in 1921 to provide better instruction to students in the operation of creameries. Students were able to study the business methods as well as creamery operations.
M.A.C Creamery was to produce 25,000 pounds of butter each month.
Sixty-First Annual Report of the Secretary of the State Board of Agriculture of the State of Michigan, and Thirty-Fifth Annual Report of the Experiment Station from July 1, 1921 to June 30, 1922 Lansing, Michigan 1923 p.44