Yesterday, 29th May 2013, the Duke had its latest unannounced visit for the real ales to be checked & tested for the highest standards expected. This enables the Duke to keep its Cask Marque status. All the real ales were checked for their temperature, appearance, aroma and taste, and all received full marks: 5/5 each again! Cask Marque – Awarded for excellence in the serving of cask beer.