Ontario wine

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Ontario wine is Canadian wine produced in the province of Ontario. The province has three official wine-growing regions, the Niagara Peninsula, the north shore of Lake Erie, and Prince Edward County, although wineries also exist in other regions in Ontario. Approximately two-thirds of Canada's vineyard acreage is situated in Ontario, with over 150 vineyards spread across 6,900 hectares (17,000 acres). As a result, the province is the country's largest producer of wine, accounting for 62 per cent of Canadian wine production, and 68 per cent of all Canadian wine exports.

The province is home to Canada's first commercial winery, opened on Pelee Island in 1866. Wineries based in Ontario began to produce ice wine in the early 1980s. In 1999, the Legislative Assembly of Ontario named the Vintners Quality Alliance (VQA) of Ontario as the province's official wine authority.

Grape vine wines constitutes the majority of wine produced in Ontario, with the province also being the world's largest producer of ice wines, a style of grape wine. Grape wines made from 100 per cent Ontario grapes can qualify for classification under Ontario's appellation system, managed by the VQA. Grape wines that are qualified by the provincial wine authority are able to use the descriptor "Ontario wine," in addition with other regulated labelling terms. However, not all wines produced in Ontario are eligible for VQA certification; most notably fruit wines, and wines made from hybrid grapes.