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Red wine will turn blue when the pH gets too alkaline. You can also make actual blue wine using the grapes to make a dye, see Gïk's blue wine.
by Raphmedia 7y ago
Red wine will turn blue when the pH gets too alkaline. You can also make actual blue wine using the grapes to make a dye, see Gïk's blue wine.
- jrumbut 7y agoThey also, to my understanding, mixed grape varieties, vintages, water, and perhaps other things in their wine, so it was quite a different beverage.