hist-brewing: ancient ale

[Greg Lindahl]

On Thu, Mar 04, 2010 at 07:59:29AM +0000, John P. Looney wrote:

> Where do you get wild yeasts that will ferment beer better

Google tells me that you can brew beer using sourdough as a starter.
You've got to figure that our ancient brewer has a way of propagating
his yeast -- and then the problem reduces to another unsolved problem:
How did the first sourdough yeast get developed?

-- greg