illphated

Step-by-Step Guide
1. Toast the Bread
Slice the rye bread and toast it in the oven at 350°F (175°C) until it’s dark brown but not burnt.
This gives the kvass its deep, malty flavor.
2. Make the Mash
Boil 10 cups of water.
Put the toasted bread in a large glass or ceramic container (avoid plastic).
Pour the hot water over the bread and let it sit, covered, for 4-6 hours or until the water is dark and infused.
3. Strain & Ferment
Strain out the bread using cheesecloth or a fine strainer.
Add the sugar and stir until it dissolves.
Let the liquid cool to lukewarm (~100°F or 38°C).
4. Add Yeast & Secondary Fermentation
Dissolve the yeast in a bit of warm water, then add it to the liquid.
Optionally, add a handful of raisins (they will rise to the top when fermentation is done).
Cover loosely (use a towel or a lid, but don’t seal it airtight).
Leave it at room temperature for 12-24 hours—the longer, the stronger the flavor.
5. Bottle & Carbonate
Strain again and pour into clean bottles.
If you want carbonation, add a teaspoon of sugar per bottle before sealing them tightly.
Store in the fridge for another 2-3 days to build fizz.
6. Enjoy!
Chill and serve! Kvass should be slightly sweet, tangy, and mildly fizzy.
Pro Tips for Apartment Brewing
Use flip-top glass bottles for carbonation (plastic can explode under pressure).
Store kvass in the fridge once it’s done fermenting to stop it from getting too sour.
If you want a less sweet drink, let it ferment longer before bottling.
Add flavors like honey, mint, ginger, or berries for variations.