Has anyone ever heard that starsan is ineffective at higher temps? I have Been home brewing for a while and never heard anything and have used it with hot water. I have been working at a brewery for a little over a month and one of the other brewers told me that starsan doesn't work at high temps. I went to the starsan website and the only heat info talks about toxic gases given off at high heat during fire conditions. I rarely use starsan in fire so I am not that worried about it. The temp I was using it at was about 180 deg. Let me know what you know.