Bread-Bakers v107.n034.7

Bob,

Are/were you feeding all these starters with the same flour? Perhaps 
it's not the same air that's making them all start to taste the same, 
but rather the same flour. The literature I've read says that all 
flour has some microorganisms attached...so perhaps in time the 
organisms in your flour come to outnumber whatever different strains 
used to be in your world tour of starters.

Allen
SHB
San Francisco