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Re: Sourdough evolution

Brianjwoody@aol.com
Sun, 10 Mar 2002 07:45:06 EST
v102.n011.1
The evolution is a result of local airborne yeasts slowly overcoming the 
original. If you start with a San Francisco culture, and live there too, it 
will stay as is for ever (except that local things evolve too!). If you 
start in England with SF, as I did, it will slowly change. How slowly 
depends on how you nurture the culture, but change it will. You can freeze 
some of the original and reactivate at intervals, after throwing away the 
one you have been using. That keeps near the original for much longer.
Cheers, Brian