Single Malt whisky is one of the most revered spirits in the world. It is exclusively made from barley, which is quite a cheap product. A bottle of The Macallan 1926 60-year-old recently sold for $1,512,000 in auction, marking the largest single sale ever for a bottle. Over the past 50 years, single malts have become increasingly popular. Scottish single malt exports grew by 14.2% in 2017 to reach nearly $1.5 billion.