On this Napa Valley episode of Master Glass, Sotheby's Jonny Fowle had the unique opportunity to taste three exceptional Macallan bottles with iconic Chef Thomas Keller, including one from his birth year. Keller is celebrated for his exacting standards, which is why his three-star Michelin restaurant, The French Laundry, only serves Macallan Scotch. Their conversation explored whisky collecting and the significance of reference points in our lives.