The Emerald Isle has a long history of spirit production dating back to the 17th century. Irish Whiskey hit its heyday in the 1820s, but production declined drastically over the following hundred years. The spirit began to regain its popularity in the 1970s, prompting a resurgence in Ireland's whiskey industry. Irish Whiskey must be produced in Ireland and is typically produced from a mix of malted and/or unmalted barley. It is commonly produced through triple distillation in a pot still and aged for a minimum of 3 years. Irish Whiskey must be bottled at a minimum of 40% ABV.