Paul John (whisky) evaporation during aging, known as the angels' share, is also higher in India, at 10–12% per year, than in Scotland, where the annual evaporative loss is about 2%. This leaves a hogshead with only 150 bottles left in it, after three years, compared to around 350 in a Scotland. Michael John describes it this way, "Whisky matured at these temperatures simply cannot be aged for the kind of time expected with Scotch, even trying to mature our whisky for just 10 years would leave barely a bottle of liquid in the barrel. Fortunately, the heat actually speeds up the maturation
Scotch whisky where, in October 2017, malt whisky production restarted for the first time in 522 years. Many Scotch whisky drinkers refer to a unit for drinking as a dram. As of 23 November 2009, the Scotch Whisky Regulations 2009 (SWR) define and regulate the production, labelling, packaging as well as the advertising of Scotch whisky in the United Kingdom. They replace previous regulations that focused solely on production. International trade agreements have the effect of making some provisions of the SWR apply in various other countries as well as in the UK. The SWR define "Scotch whisky" as whisky that is: