In Slavic countries they love to drink and prepare kvass. Preference is given to homemade kvass for its natural composition and the absence of preservatives in it! This drink has a long history. In this recipe for kvass you only need water, sugar, citric acid, yeast and dry bread kvass. Mix all the dry ingredients in a jar, pour boiled water over them, stir thoroughly and leave to steep. Let the liquid sit for a day and your wonderful kvass is ready!