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Products kvass apple: 1 kg of apples, 2.5 cups of sugar, 50 g compressed yeast, 1 tablespoon lemon juice, 5 liters of water.
To prepare kvass apple cut into, fill with water, bring to a boil, let it brew for 2 - 3 hours and strain. Add the extract diluted in boiled water, yeast, and sugar and lemon juice. Put kvass for fermentation.