Kvass is a traditional fermented drink popular in Eastern Europe, made from toasted rye bread, sugar, raisins, and yeast. Refreshing, slightly sweet, and naturally fizzy, this homemade version is easy to prepare with just a few simple steps.

Ingredients
- 2.5 gallons (10 quarts) water
- 1 lb (about 9 slices) black, dark, or rye bread
- 1 handful raisins
- 1.8 lb (about 4 cups) sugar
- 1 1/2 Tbsp active dry yeast
- 3 large plastic soda bottles (for storing)
Instructions
Day 1 (Evening Prep)
- Fill a large stockpot with 2.5 gallons of water (or divide into two large pots) and bring to a boil.
- While waiting, toast the bread slices twice on the darkest toaster setting. The darker the bread, the richer and darker your kvass will be. Tip: Toast outdoors or in a ventilated space to avoid smoke indoors.
- Once the water boils, remove from heat. Add the toasted bread and raisins, cover with a lid, and let steep overnight (at least 8 hours).
Day 2
- Remove and discard the toasted bread.
- In a bowl, mix together sugar and yeast. Stir this mixture into the kvass base.
- Cover with plastic wrap or a lid and let sit at room temperature for 6 hours, stirring every couple of hours.
- Scoop out and discard the floating raisins. Strain the liquid through a fine sieve or cheesecloth.
- Pour into plastic bottles, leaving a little room at the top. Loosely cover with lids and refrigerate overnight. Once fully chilled, tighten the lids.
Your homemade kvass is now ready to enjoy!
Why You’ll Love This Recipe
- Traditional Eastern European flavor made simply at home.
- Naturally fizzy, refreshing, and lightly sweet.
- A fun fermentation project with minimal effort.
- Perfect for summer or as a unique drink to serve guests.

Tips
- Use dark rye bread for the richest flavor and deepest color.
- Don’t skip the overnight steeping—this is key to the flavor.
- Always leave room in the bottles for carbonation.
- Use plastic bottles instead of glass, as kvass naturally builds pressure.
Variations and Substitutions
- Fruit-flavored kvass: Add dried apples, prunes, or cherries along with raisins.
- Herbal twist: Infuse with mint or lemon balm for freshness.
- Lower sugar: Reduce sugar slightly if you prefer a less sweet drink.
- Alcohol-free option: Standard kvass is naturally very low in alcohol (under 1%), but for even less fermentation, reduce the yeast slightly.
FAQs
Is kvass alcoholic?
Traditional kvass is only mildly fermented and contains less than 1% alcohol—similar to kombucha.
How long does kvass last?
Homemade kvass keeps in the refrigerator for about 5–7 days.
Can I make kvass without raisins?
Yes, but raisins help with fermentation and add flavor depth, so it’s best to include them.
Why use plastic bottles instead of glass?
Plastic bottles are safer for fermentation since they expand with carbonation. Glass bottles may crack or explode under pressure.
Serving Suggestions
- Serve cold, straight from the refrigerator, for the best taste.
- Pour into chilled glasses and garnish with fresh mint.
- Pair with hearty dishes like pierogi, borscht, or roast meats.
- Offer as a refreshing non-alcoholic drink option at gatherings.
Easy Bread Kvass Recipe
24
servings14
hoursIngredients
2.5 gallons (10 quarts) water
1 lb (about 9 slices) black, dark, or rye bread
1 handful raisins
1.8 lb (about 4 cups) sugar
1 1/2 Tbsp active dry yeast
3 large plastic soda bottles (for storing)
Directions
- Day 1 (Evening Prep)
- Fill a large stockpot with 2.5 gallons of water (or divide into two large pots) and bring to a boil.
- While waiting, toast the bread slices twice on the darkest toaster setting. The darker the bread, the richer and darker your kvass will be. Tip: Toast outdoors or in a ventilated space to avoid smoke indoors.
- Once the water boils, remove from heat. Add the toasted bread and raisins, cover with a lid, and let steep overnight (at least 8 hours).
- Day 2
- Remove and discard the toasted bread.
- In a bowl, mix together sugar and yeast. Stir this mixture into the kvass base.
- Cover with plastic wrap or a lid and let sit at room temperature for 6 hours, stirring every couple of hours.
- Scoop out and discard the floating raisins. Strain the liquid through a fine sieve or cheesecloth.
- Pour into plastic bottles, leaving a little room at the top. Loosely cover with lids and refrigerate overnight. Once fully chilled, tighten the lids.
- Your homemade kvass is now ready to enjoy!



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