Last summer two Galway archaeologists proposed a theory which made worldwide headlines. They suggested that one of the most common archaeological monuments in the Irish landscape may have been used for brewing a Bronze Age Beer. They will demonstrate and discuss their experiments and research (and distribute tasters of the brew) into the enigmatic site that is the fulacht fiadh at the World Archaeological Congress ‘Fringe' at UCD on Thursday 3rd and Friday 4th July.
Tough to say if they're right; just because they could use it for brewing doesn't mean they did.
UPDATE: More archy beer here.