We trust in the safety of the fresh and frozen food we buy at the market. Do you know which trade keeps all our food frozen or cooled so it can safely get to our dinner tables? Answer: Steamfitters. Today’s video from Building Wisconsin TV covers Ammonia Refrigeration Systems which make fresh and frozen food distribution possible. Host Stuart Keith visits Summit Refrigeration Group for a tour with owners Mike Conti, Fred Anderson and Rick DeGroot along with members from Steamfitters Local 601. We’ll check out the fabrication shop, visit a cold storage construction site and finish in a massive cold storage food warehouse. This video has over 40,000 views on YouTube.