While on holiday in Cornwall last week I went to the Tate at St Ives who are hosting the Free Beer exhibition in collaboration with the Danish artist’s group Superflex and the St Austell Brewery.

Similar to the OpenCola project, the Free Beer recipe is available under a Creative Commons license (Attribution ShareAlike 2.5). This means everyone has access to its ‘source code’ and is therefore at liberty to modify, improve or share it with others without charge, so long as they attribute the recipe. Indeed Superflex have previously released Free Beer version 3.0 in Italy, San Francisco and Denmark.

Clearly this is primarily about marketing and art but it is none the less interesting because, like OpenCola, it does help to explain open source software.