The Water
Penderyn Distillery is located in the Brecon Beacons National Park and draws water exclusively from our own pure source in the carboniferous limestone deep below the distillery. This is the only water used in the distilling and blending process and it is a key ingredient in our malt whisky. The same source provides some of the finest bottled mineral waters in the world.
The distillery sits above a cavernous aquifer that contains rock formations laid down around 340 million years ago. This aquifer holds water that filters down through the overlying basal grit into the limestone. The whole formation is described as thick-bedded and of fine to course-grained material. It was originally deposited in a shallow marine environment. Ancient weathered surfaces exist in parts of the formation, covered with thin, primordial soil in places where the rock was briefly higher than sea level before being submerged again.