The Saltpeter would be added to water and the serving vessel chilled in the mixture . . . . It was normally used in India to make ice cream and Sorbets . . . . but some bright spark realised that you could cool beer with it as well ![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
MEB said:Perhaps i should get some of this salt peter stuff rather than fanny arse about with fridges and freezers...