Is pure pot still whiskey a straight whiskey or a vatted style blended whiskey?

Pure pot still Irish whiskey is similar to a single malt, in that it is not blended with grain whiskey. It is, therefore, a straight whiskey. It is now only made in one distillery in the world - Midleton in Co. Cork. It is made differently to single malt because the MASH it is brewed and distilled is made from both malted and unmalted barley. The enzymes in the malted barley effectively stimulate the production of malt in the unmalted barley. There are only a few of these on the market today - Redbreast 12 and Green Spot. The others you get now and again are limited editions.