As a comparatively recent convert to Irish whiskey, one of the more confusing things to come to terms with has been the practice of distilleries sourcing their spirit. I initially scratched my head when trying an 18-year-old from a distillery that had only started production in 2013. So how is it that something like this can be released, and what does it mean for the consumer? Sourced whiskey seems to be a widely acknowledged but seldom discussed topic.