Answers to the wine quiz:

1 Rustenberg; 2 England; 3 Rootstock; 4 Tokaji; 5 Italy; 6 Lagares; 7 En Primeur; 8 Ull de Llebre; 9 Enologist; 10 González-Byass; 11 New Zealand; 12 Nebbiolo; 13 Vin; 14 Latour; 15 Rosé.

Taking the first letter of each answer gives you the grape variety Grüner Veltliner.