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  • Thanks for the answers. I checked the brew yesterday and tasted a few drops. It tasted sour (acidic). Is that normal? Will the brew remain sour at the end of the fermentation process? Usually wine or beer are not sour. Is it possible that it is turning into vinegar? Looking for your expertise pls. Commented Apr 30, 2020 at 21:40
  • You still didn't tell me what you are trying to do. It also depends on the yeast you're using. Some yeast gives a sour taste, some not. If not sanitazing correctly, you might be inviting wild yeast and many of them give a sour taste.
    – Boubou
    Commented May 1, 2020 at 0:03
  • OK. I am trying to brew beer. I used 200 grams of sugar, 100 grams of ginger and few mint leaves in 1.5 lt. of water. As per an online calculator, the max. alcohol content would be 7.8 % by volume. I used common yeast for baking (available readily at local stores). I cleaned the articles in hot water before starting the brew. Is there any test to ascertain vinegar growth pls? Commented May 1, 2020 at 14:21
  • "Is there any test to ascertain vinegar growth pls?" yes there is a test... taste it.
    – Sparki
    Commented Sep 29, 2020 at 14:10