Kvass

What Is Kvass?

Kvass is a traditional drink from Eastern Europe and Russia, usually made by fermenting toasted rye or dark bread with water, sugar, and yeast. Some regions also make versions from beetroot.

It has a mildly sour, tangy, and refreshing flavor; being a fermentation product, it can contain a very low (trace) level of alcohol, so it is traditionally considered a near non-alcoholic drink. It is also a way of using up stale bread.

Nutritional Values of Kvass

Since there is no single verified nutrition dataset specific to kvass and the sugar-bread ratio varies by recipe, a numerical table is not given. Its calories come largely from added sugar and bread; it is generally considered low in calories.

What Are the Benefits of Kvass?

Kvass is a fermented, refreshing drink widely consumed in Eastern European cuisine; it is a practical product for using up stale bread. It does not carry a direct health-benefit claim.

This information is general; kvass is a drink, not a substitute for medical treatment. Since it can contain trace alcohol, pregnant women and those who should avoid alcohol should pay attention to production conditions.

How to Choose Kvass?

Quality kvass is naturally fermented and has a mildly sour-tangy aroma; it should be distinguished from “kvass-flavored” carbonated drinks made only with flavoring and carbonation.

• Should be a natural fermentation product, not just a flavored soda
• Should carry a mildly sour-tangy, bread-like aroma
• Should have been kept in the cold chain, with a suitable date

How to Store Kvass?

Since kvass is a living fermentation product, it is stored in the refrigerator, in a sealed bottle, for a few days; since fermentation continues, pressure can build up in the bottle, so it should be opened carefully.

Using Kvass in the Kitchen

Kvass is consumed mainly as a cold drink; it is also used as the liquid base for a cold soup called “okroshka” in Eastern European cuisine.

How Is Kvass Made?

Slices of toasted rye/dark bread are placed in hot water with sugar and yeast added; after fermenting for a few days, it is strained, bottled, and chilled to be ready for serving.

Kvass in Okroshka Soup

In cold okroshka soup, cold kvass is poured over chopped vegetables, egg, and meat to make a refreshing, tangy summer soup.

Which Recipes Use Kvass?

Cold kvass drink, okroshka soup, and some marinades are the best-known uses of kvass.

Frequently Asked Questions

Is kvass alcoholic?

Being a fermentation product, it can contain a very low (trace) level of alcohol; it is traditionally considered near non-alcoholic, but the alcohol amount can vary depending on production conditions.

What is kvass made from?

Most commonly from toasted rye or dark bread; in some regions from beetroot. Water, sugar, and yeast drive the fermentation.

What does kvass taste like?

It has a mildly sour, tangy, bread-like flavor; it is refreshing and mildly carbonated.

Are kvass and boza the same?

No; both are grain-based fermented drinks, but boza is a thick Turkish drink made mainly from grains like millet/bulgur, while kvass is a more fluid Eastern European drink made from bread.

Can kvass be made at home?

Yes; it can easily be fermented at home in a few days with toasted bread, water, sugar, and yeast; since it can build pressure in the bottle, it should be stored carefully.