(TheAge) - A twister has badly damaged vines and an equipment shed at a vineyard in the Hunter Valley.

Footage of the twister at Keith Tulloch Wines in Pokolbin shows wind blasting through parts of the property on Sunday afternoon.

No one was injured, although about 100 vines and an equipment shed were destroyed

Keith Tulloch Wine spokesman Alisdair Tulloch praised cellar door staff, who he said first realised something was headed their way when they were pelted with fruit on the second floor of the winery.

"They looked up and they saw a spiral vortex, which then started to touch down into the vineyard on the other side of the winery," he said.

"That became pretty urgent at that point."

With everyone safe and all furniture secured, Mr Tulloch said staff could only watch as it "chewed through a couple of hundred metres of our vineyard." 

"It started off by uprooting a few trees and then in touched down in the vineyard," Mr Tulloch said.

"We've lost probably 100 to 150 vines along a stretch close to 200 metres long."

The twister centred on a small portion of the winery, Mr Tulloch said, boring into the earth and causing most damage to one corner of the property.

That area was a semillon vineyard planted almost 50 years ago.

"We just harvested this fruit, we haven't lost this year's vintage," he said.

"It should all be looking at a full recovery but unfortunately old vines are something that take a very long time to recreate."

Mr Tulloch said that despite the damage, the whirlwind was a stunning spectacle.

"Realistically in terms of people being in danger, it never really threatened [but] it was pretty breath-taking," he said.