chuffer
Landlord.
- Joined
- Mar 22, 2016
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Looked for their spec sheet couldn't find it, if you mix with tap water it is effective for one hour. Pretty much the same as proxitane which I use. Discussion on Homebrewtalk here.
https://www.homebrewtalk.com/forum/threads/does-star-san-go-bad.457271/
That thread appears to reflect what i understood to be true, which is that the star san solution (presumably chemsan acts the same way) needs to have a ph of less than 3 to be effective....thats not the same as needing your water ph to be brought down to 3 before you add the star san / chem san