That's a long time
The microorganisms that live in Boudin Bakery’s sourdough starter have been kept alive since 1849 https://t.co/8fzPJGtOS6
— Atlas Obscura (@atlasobscura) November 26, 2017
I'm getting ready to make a new sourdough starter, but before I got one going I actually checked to see if Boudin, the bakery where I first enjoyed sourdough, makes its starter available. I still keep a poster from the bakery on my dining room wall.