alt Hacker NewsI enjoy the flavor of kvass - a Russian / eastern European malt flavored soda - but it's hard to find where I live. The process involves really aggressively toasting some rye bread, boiling it with eaisans and sugar, straining it, and then brewing it with ordinary baking yeast in 2-liter bottles until it reaches your desired carbonation level. The end result is really refreshing.
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Me too except I just use rye malt instead of the bread and without making any dough with it. The malt is cheap and easy to get in UK thanks to home brewing suppliers whereas rye bread is super expensive.
My only challenge is controlling the gassiness - it’s so vigorous that the moment I even slightly open the cap the whole thing fizzes up like crazy - opening it normally would result in a kvass fountain shooting up like 30cm. :)
If you can get it where you are, have you considered trying malta[0][1]?
[0] https://en.wikipedia.org/wiki/Malta_(soft_drink)
[1] https://www.findmeabrewery.com/blog/malta/