Sodium metabisulphite

[wineview]

During a previous round of these "How long does it last?" Back & Forth discussions I tested 4-5 week old batch of Star San. The pH came in at about 2.7 well within the useful range. One more reason I use it.

Do you use PH strips or something more sophisticated?

 

[Scooter68]

I use a pH meter. Litmus paper (Paper strips) are of no use to me since most of my wines are dark wines. And I wouldn't buy special Litmus paper to be able to read a pH that low for a one time test of my StarSan solution.

 

[wineview]

I use a pH meter. Litmus paper (Paper strips) are of no use to me since most of my wines are dark wines. And I wouldn't buy special Litmus paper to be able to read a pH that low for a one time test of my StarSan solution.

Below 3 for Star San correct?

 

[Scooter68]

Below 3 for Star San correct?

Yes.