We asked a simple question on social media: what are your top 3 grape varieties for white wine? The reaction...blew us away, with a torrent of fascinating responses from all around the world featuring more than 100 different grape varieties - not to mention fighting talk, bonding, football analogies and cheating. We got a bit carried away with this podcast - it's our favourite one so far - but there is something for EVERYONE here: laughter, tears, David Beckham, sherry, scholarship (in the form of the fascinating expert Dr José Vouillamoz and his definitive tome Wine Grapes) and controversy. Talking of which, we give the DEFINITIVE verdict on the best white wine grape variety...