France has warned wine production could fall to a record low due to spring frosts.
Damage to vineyards, particularly in the Bordeaux region, could cause a 17 per cent drop in French wine output.
The French agriculture ministry estimated production will be at 37m to 38.2m hectolitres, down from 45.5m in 2016, according to Reuters.
Taking from that a median volume of 37.6m hectolitres, output would be 17 per cent lower than last year and 16 per cent below the average production level.
The ministry said that would be a historically low level for the world's second-largest producer of wine.
The Bordeaux region could lose half of its output because of the unexpected cold snap.
"This fall in production is primarily due to the severe frosts in the spring, which affected, at a sensitive stage of the vine's growth, all the wine-growing basins to varying degrees," the ministry said.
French winemakers also experienced severe frosts in 2016, which damaged Champagne volumes in particular.