Brewed with well water (the original well at the Old Brewery, sunk in 1758, is still in use, with the hard well water being drawn from 85 feet underground); fermented in ‘stone Yorkshire squares’ to create an almost opaque, wonderfully silky and smooth textured ale with a complex medium dry palate and bittersweet finish.
Data sheet
https://untappd.com/b/samuel-smith-s-old-brewery-oatmeal-stout/8