Steam Whistle Brewing

Steam Whistle Brewing is an independent brewery in Toronto, Ontario, Canada. It was founded in 2000 by three former employees of Upper Canada Brewing Company after that company was acquired by a larger corporation. Steam Whistle is best known for producing a single flagship beer, Steam Whistle Pilsner, which has become one of Canada’s most recognized independent beers. The company also produces New Belgium Brewing Company brands for the Canadian market.

The brewery occupies Bays 1–14 in the John Street Roundhouse building at Roundhouse Park. Built in 1929, it was previously the home of a Canadian Pacific Railway steam locomotive repair facility and operated as such until May 13, 1988. The John Street Roundhouse is designated a National Historic Site and is owned by the City of Toronto. Steam Whistle’s location, at the base of the CN Tower in downtown Toronto, has become both a production space and a cultural hub, hosting tours, events, a taproom and a restaurant called the “Steam Whistle Kitchen”. Each day, a working steam whistle on the brewery’s roof sounds to mark the end of the workday, a tradition that ties the company’s brand to the building’s railway heritage.

The company operates the annual Steam Whistle's Roundhouse Winter Craft Beer Festival (RHCBF).

The brewery was the first customer of renewable energy project, the Deep Lake Water Cooling System.