I have had one nagging question in the back of my mind for months now. Star San kills most living things...including wild yeast (at least I'm fairly certain of this). Yet, it is absolutely fine if it gets into the beer and it does not seem to affect brewers yeast. Can anyone offer an explanation of this? Does star-san not kill yeast (wild or brewers), or is wild yeast genetically different enough to be affected by star-san?