Method and Madness Oats and Malt is from Midleton's experimental distillery, where the distillery's masters and apprentices continue to push well beyond the boundaries of conventional Irish whiskey. Built on an unconventional mash bill of 60% oats and 40% malted barley, this is a distillate-driven whiskey that sits outside the Irish Whiskey Technical File, making it unlike anything you have tasted before.