the orkney brewery produces cask ale and filtered beer in bottles, and since october 2005, a lager. "dark island" a rich, fruity, vinous dark ale, is the biggest seller. dark island has won champion beer of scotland on several occasions. "red macgregor", a 4% bitter has won the world cask beer gold medal (biia 2001). the same name is used for a 5% premium bitter available filtered in the bottle.