the toronto blue jays announced on january 12, 2013 that loewen had been signed to a minor league contract with an invitation to spring training. initially, loewen was to start the 2013 season with the double-a new hampshire fisher cats; however, on april 2, loewen was promoted to the triple-a buffalo bisons, where he played during 2012 in the mets farm system. on april 11, loewen was sent down to double-a new hampshire. in 115 games with new hampshire, he hit .269 with 15 home runs and 60 rbi.