I don't really get the point of the sterilized equipment. Surely if anything is going to contaminate the experiment with modern yeast, it's the freshly milled f

I don't really get the point of the sterilized equipment. Surely if anything is going to contaminate the experiment with modern yeast, it's the freshly milled flour. Presumably you'd want to test the active starter to see if the ancient strains of yeast took hold. Edit: nevermind, I missed that the flour was sterilized too.