It’s a fruitful winter for Ontario icewine

Cold chilly temps have left icewine producers pleased, with many done their harvest weeks early.

By Clare Bonnyman, CBC News Posted: Dec 23, 2016 5:45

Icewine producers in Southern Ontario are happy after a cold December meant an early harvest. (Pillitteri Estates Winery)


Cold December weather made for an exceptional year for icewine in the Niagara wine region of southern Ontario.

A sustained cold snap meant wineries across the region were able to harvest frozen grapes weeks earlier than normal, in some cases even months, meeting Vintners Quality Alliance (VQA) regulations way ahead of schedule.

As one of the top producing regions for icewine in the world, it’s a big deal.

A bountiful business

The province produces 80 to 95 per cent of icewine in the country, and “it would be safe to say that 60 per cent of all icewine produced in Canada is being produced in Niagara-on-the-lake,” said Jamie Slingerland, director of viniculture at Pillitteri Estates Winery.

Many icewine producers harvest by hand, going out at night to pluck grapes from the vine. This year the cold meant many producers got to harvest during the day. (Pillitteri Estates Winery)

Pillitteri is one of the leading exporters of icewine in the world today. It’s growing larger still, as traditional European producers are struggling with warmer climates, and can no longer maintain the temperature required to harvest frozen grapes.

Said Slingerland, “It’s such a difficult item to produce.”

The VQA requires that icewine grapes must be harvested when “a sustained temperature of minus 8 degrees or lower is reached” according to their website. The grapes must be harvested and pressed in the same temperature air, making it a tricky process.

‘It’s such a difficult item to produce.’– Jamie Slingerland, Director of Vinoculture at Pillitteri Estates Winery

“There is a degree of complexity to it,” said Slingerland, “there is a small window.”

Early harvest

Average icewine harvest periods can range from December through to late February, and in extreme cases even March.

“In the last three or four years, we have harvested almost like clockwork the first week of January,” said Slingerland.

Thanks to the sustained cold snap this winter, they were able to harvest the majority of their grape varieties before Christmas.

Pillitteri dedicates 50 per cent of their production to ice wine, keeping grape varieties like riesling, cabernet sauvignon, shiraz and gewürztraminer on the vine into the winter months. (Pillitteri Estates Winery)

“It’s been a bonus for a lot of people. Getting the grapes off sooner, means you lose less grapes,” he said.

Other wineries across the region are also reporting an early and large harvest this year, including Fielding Estate Winery, D & S Vineyards, and Huebel Grapes Estates.

Pillitteri has dedicated fifty per cent of its harvest to icewine, and estimate they produce about 20 per cent of icewine in the province. It makes for a lot of fruit, and can lead to shifts as long as 26 ½ hours for a harvest.

An all star season

For Paul Pender, at Tawse Winery, this season has been an exceptional one for icewine harvesting.

“To get it done in December is amazing,” he said. “To get it done before Christmas is a big bonus.”

Large scale producers like Pillitteri use heavy machinery, harvesting up to 200 tons of grapes in a single night. (Pillitteri Estates Winery)

Tawse produces icewine on a smaller scale than Pillitteri, which uses machinery equipment to harvest its grapes. Pender and his team pick the grapes by hand, often at night to maintain the required temperature.

“This year it was so cold people were able to pick during the day,” he said.


With an expected thaw over Christma,s some may be concerned, but in many cases wineries keep the grapes on the vine through multiple freeze-thaw cycles, to alter the flavour of the grape.

Still, Slingerland cautions an extended period of warmth can cause certain grapes to begin disintegrating.

Vidal grapes, like these, often stay on the vine late into February, withstanding the cold with a thicker skin. (Pillitteri Estates Winery)

“That’s part of the risk factor. It’s a very high-risk crop, and that’s why many wineries only do half of a percent of it. It’s a novelty,” he said.

With only one day of 8 C and a big rain storm expected through Boxing Day, he says the grapes on the vine should be safe until the next cold snap. Which is important considering the reach of Canadian icewines.

“People don’t realize that icewine garners for Canada as much attention in the wine world as hockey does for Canada in the sports world, if not more,” he said.

“Canada produces the best icewine in the world, and now we produce the most in the world.”

Leave a Comment

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s