Sud Ouest reports that growers have been able to assess the damage and they say around 30% of this year's coming harvest is lost.
Cold spells between 20 and 21 April, as well as 27 and 28 April, hit around 60,000 hectares out of a total of 114,000 hectares across the Médoc and Sauternes appellations.
Few growers have insurance against such icy conditions damaging their vines, and meetings are now being planned between the growers, local authorities and related businesses to try and ensure the wine industry gets through this difficult period.
Image by Conseil Interprofessionnel du Vin de Bordeaux (CIVB).
Related: Frosty chill poses a risk to growers