Video: Prince Charles pulls a pint of 'Cronx' in Croydon The Prince accepted an invitation from staff at the Cronx micro-brewery in Croydon to pull a pint of their Standard Bitter. Cronx is an affectionate local nickname for Croydon. The Duchess of Cornwall was a model of abstemiousness however, opting for a cup of tea while her husband tasted the local brew. Speaking after the visit, one staff member complimented the Prince on his skills as a barman, saying "he poured it very well."