Question

what amount of potassium metabisulphite should be added to produce red wine from grapes?

Answer 1

25% of potassium metabisulphite should be added to produce red wine from grapes it means 25% potassium metabisulfite and 75% crafts use which is fermented

Answer 2

25% and 75% is the ratio or amount of potassium metabisulfite should be added to produce red wine from grapes