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Vino
01-09-2009, 01:11 PM
I have been searching through the forums for a few days trying to determine how much potassium metabisulphite to add to a mead before bottling for stabilization. From my reading I have found that a sulfite titration test is not recommended, and that pH plays a big factor in determining additons.

From what I can gather from additional research is that to attain 0.8ppm of molecular SO2 I will need to add potassium metabisulphite in ppm based on pH as follows: pH 3.0 (14ppm), pH 3.1 (18ppm), pH 3.2 (22ppm), pH 3.3 (28ppm), pH 3.4 (35ppm), pH 3.5 (44ppm), pH 3.6 (55ppm), pH 3.7 (69ppm), pH 3.8 (87ppm), and pH 3.9 (109ppm).

Is this even close?

Any clarification on this would be greatly appreciated.

Oskaar
01-09-2009, 02:03 PM
See my post here (http://www.gotmead.com/forum/showpost.php?p=112153&postcount=26) and see if that helps.

Cheers, Oskaar