France 2: “The temperatures here have fallen to less than 1.5C, so it’s preferable to light [the candles]. We’re lucky, at least it’s not raining.”
But he said: “Even though we’ve put candles out, there’s no guarantee that it will work.”
Another producer, Patrick Carillon at the Domaine Fery in Côte-d Or, has even invested in a giant fan to help warm the crop.
He said: “It takes the warmer air from higher up, and pushes it to the ground. We can raise [temperatures] by up to 2C.”
Some larger vineyards have even hired small helicopters to fly low over vines to move hotter air downwards to the soil - at a great cost.