Limited Quantity of Ontario Icewine Likely to Make 2020 Bottles in High Demand

Frozen grapes hang on their vines as grower Ted Scube drives a harvester in Niagara-on-the-Lake, Ontario, on Jan. 26, 2007. Canada stands at the top of the icewine podium, with almost 100 wineries out of 500 that last year produced 2.5 million bottles worth $70 million retail. The Canadian Press/Dave Chidley

TORONTO—The smallest ever recorded amount of Ontario grapes designated for icewine is likely to create a high demand for 2020 bottles of the super sweet treat.

VQA Ontario, the province’s wine regulator, reported just more than 1,000 tonnes of grapes registered for icewines this year, down from almost 6,000 tonnes last year.