All locations on earth have their own unique localized combinations of yeasts and bacteria floating about in the air. Now add in that all flours also contain their own combinations of yeasts and bacteria from the grains and the mills. Now add in humidity and ambient temperatures the encourage or discourage competing strains of yeast and you can begin to see the randomness and varieties that have evolved. Essentially, if you start your own Sourdough starter in your home there is still a very good chance that it may still differ from your next door neighbor's due to the myriad of variables. So settle on a Starter that you like and nurture it as your baby. Hope that helps.
All locations on earth have their own unique localized combinations of yeasts and bacteria floating about in the air. Now add in that all flours also contain their own combinations of yeasts and bacteria from the grains and the mills. Now add in humidity and ambient temperatures the encourage or discourage competing strains of yeast and you can begin to see the randomness and varieties that have evolved. Essentially, if you start your own Sourdough starter in your home there is still a very good chance that it may still differ from your next door neighbor's due to the myriad of variables. So settle on a Starter that you like and nurture it as your baby. Hope that helps.