Then, for each liter of the resulting mixture was added 100 grams of honey or sugar, and to accelerate fermentation - 10 g of bread yeast and 20 g of dry black bread.
Pour mixture into a glass, wood or enamel container without a lid and place for ten days in a dark and warm place, a day with a wooden spoon stirring a lot.
At the end of the first stage of fermentation, the mixture is filtered through cheesecloth, pour the juice into another bowl with a wide mouth, add 50-100 grams of honey or sugar and mix thoroughly, tie a vessel with gauze and kept warm for the continuation of the process of fermentation. This usually requires 40-60 days.
When fermentation is complete, the liquid ceases to foam and becomes light. The resulting vinegar is filtered, bottled and stoppered. Store apple cider vinegar in a cool place.