this post was submitted on 09 Jul 2023
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Homebrewing - Beer, Mead, Wine, Cider
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Adding alcohol to bring your mead to 12-15% and then adding more sugar is the principle behind fortified wine like port. The chemical you’re referring to is sulphites, which are produced naturally by yeast anyway.
In order to safely backsweeten a mead that is < abv tolerance of the yeast though requires both Sulfite and Sorbate. The sorbate prevents the yeast from dividing and multiplying. The sulfite inhibits yeast function, and prevents bacterial infection.