Yvonne Lorkin talks about a wine innovation which takes out the Auckland Uni $100k Challenge - it's called the Wine Grenade. Plus the oldest charity wine auction in New Zealand coming up. The Selections: Soljans Estate Fusion Sparkling Muscat NV $15, Thistle Ridge Waipara Pinot Noir 2013 $19 and Matariki's Les Filles Gimblett Gravels Cabernet Sauvignon ($58).