2H2S + H2SO3 → 3S + 3H2O
(Adding sulphites in aqueous solution is H2SO3).
thanks, I will make the corrections and cite you as the reference!No problem! Sulphur compounds in wine/cider and yeast metabolism in general are actually a little more complicated than what I wrote above. Here’s a good link: https://brocku.ca/ccovi/wp-content/uploads/sites/125/Karl-Kaiser-Controlling-reductive-red-wine-aroma-2010-.pdf
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brocku.ca