Your first sip of heavily peated whiskey can be shocking. Medicinal aromas, hospital disinfectants, or smoky campfires hit your senses directly. While some may reject it instantly, enthusiasts find it deeply addictive. The secret behind this polarizing flavor profile is 'Peat.'
Peat is decomposed organic matter made of moss, heather, and plants decayed under cold, wet boglands over thousands of years. Historically, when coal was expensive in remote areas of Scotland, distilleries burned dried peat to dry the damp malted barley (kilning). The dense, oily smoke released during burning infuses phenol compounds directly into the barley grains.
This phenol level, measured in PPM (Parts Per Million), determines the peat intensity. Distilleries on the Isle of Islay, such as Laphroaig, Ardbeg, and Lagavulin, are famous for producing heavily peated spirits. From campfire smoke to medicinal iodine, peated whiskeys offer intense starting notes with surprisingly sweet and complex finishes.