Kvass

Source: Wikipedia, the free encyclopedia.

Kvass
herbs, honey
VariationsBeetroot kvass,[5] white kvass[6]
Food energy
(per serving)
Circa 30–100 kcal
Nutritional value
(per serving)
Protein<0.15[7] g
Fat<0.10[7] g
Carbohydrate5.90[7] g

Kvass is a

fermented
cereal-based low-alcoholic beverage of cloudy appearance and sweet-sour taste.

Kvass originates from northeastern Europe, where grain production was considered insufficient for beer to become a daily drink. The first written mention of kvass is found in

bread yeast or baker's yeast at room temperature. In industrial methods, kvass is produced from wort concentrate combined with various grain mixtures. It is a popular drink in Poland,[11][12] Russia,[13][14]
Ukraine, Belarus, Lithuania, Latvia, Estonia, some parts of Finland, Sweden, and China.

Terminology

The word kvass is ultimately from Proto-Indo-European base *kwh₂et- ('to become sour').[15] In English it was first mentioned in a text around 1553 as quass.[16][17] Nowadays, the name of the drink is almost the same in most languages: in Polish: kwas chlebowy (lit. 'bread kvass', to differentiate it from kwas, 'acid', originally from kwaśny, 'sour'); Belarusian: квас, kvas; Russian: квас, kvas; Ukrainian: квас/хлібний квас/сирівець, kvas/khlibny kvas/syrivets; Latvian: kvass; Romanian: cvas; Hungarian: kvasz; Serbian: квас/kvas; Chinese: 格瓦斯/克瓦斯, géwǎsī/kèwǎsī; Eastern Finnish: vaasa. Non-cognates include Estonian kali, Finnish kalja, Latvian dzersis (lit. 'beverage'), Latgalian dzyra (lit. 'beverage', similar to Lithuanian gira), Lithuanian gira (lit. 'beverage', similar to Latvian dzira), and Swedish bröddricka (lit. 'bread drink').

Production

Home fermentation of kvass in glass jars.

In the traditional method, either dried rye bread or a combination of

bread yeast and sugar are added to the extract and fermented for 12 hours at 20 °C (293 K; 68 °F). Alternatively, rye flour is boiled, mixed with rye malt, sugar, and baker's yeast and then fermented for 12 hours at 20 °C (293 K; 68 °F).[5]

The simplest industrial method produces kvass from a wort concentrate. The concentrate is warmed up and mixed with a water and sugar solution to create wort with a sugar concentration of 5–7% and pasteurized to stabilize it. After that, the wort is pumped into a fermentation tank, where baker's yeast and lactic acid bacteria culture is added, and the solution is fermented for 12–24 hours at 12 to 30 °C (285 to 303 K; 54 to 86 °F). Only around 1% of the extract is fermented out into ethanol, carbon dioxide, and lactic acid. Afterwards, the kvass is cooled to 6 °C (279 K; 43 °F), clarified through either filtration or centrifugation, and adjusted for sugar content, if necessary.[18]

Initially, it was filled in large containers from which the kvass was sold on streets, but now, the vast majority of industrially produced kvass is filled and sold in 1–3-litre plastic bottles and has a shelf life of 4–6 weeks.[19]

Kvass is usually 0.5–1.0% alcohol by weight,[20][21] but may sometimes be as high as 2.0%.[22]

History

A kvass vendor (kvasnik) in Russian Empire in the 18th century.

The exact origins of kvass are unclear, and whether it was invented by

Kiev.[25] Kvass-making remained a daily household activity well into the 19th century.[18]

In the second half of the 19th century, with military engagement, increasing industrialization, and large-scale projects, such as the construction of the Trans-Siberian Railway, created a growing need to supply large numbers of people with foodstuff for extended periods of time, kvass became commercialized; more than 150 kvass varieties, such as apple, pear, mint, lemon, chicory, raspberry, and cherry were recorded. As commercial kvass producers began selling it in barrels on the streets, domestic kvass-making started to decline.[18] For example, in the year ended 30 June 1912, there were 17 factories in the Governorate of Livonia, producing a total of 437,255 gallons of kvass.[26]

In the 1890s, the first scientific studies into the production of kvass were conducted in Kiev, and in the 1960s, commercial mass production technology of kvass was further developed by chemists in Moscow.[18]

By country

Russia

A kvass street vendor in Belgorod, Russia, 2013.

Although the massive flood of western soft drinks after the fall of the

USSR, such as Coca-Cola and Pepsi, substantially shrank the market share of kvass in Russia, in recent years, it has regained its original popularity, often marketed as a national soft drink or "patriotic" alternative to the famous Coca-Cola drink. For example, the Russian company Nikola has promoted its brand of kvass with an advertising campaign emphasizing "anti-cola-nisation." Moscow-based Business Analytica reported in 2008 that bottled kvass sales had tripled since 2005 and estimated that per capita kvass consumption in Russia would reach three litres in 2008. Between 2005 and 2007, cola's share of the Moscow soft drink market fell from 37% to 32%. Meanwhile, kvass's share more than doubled over the same time period, reaching 16% in 2007. In response, Coca-Cola launched its own brand of kvass in May 2008. This is the first time a foreign company has made an appreciable entrance into the Russian kvass market. Pepsi has also signed an agreement with a Russian kvass manufacturer to act as a distribution agent. The development of new technologies for storage and distribution, and heavy advertising, have contributed to this surge in popularity; three new major brands have been introduced since 2004.[27]

Market shares for Russia (2014)

Company Brand name Share [%][28]
Deka [ru] Никола 39
Ochakovo Очаковский 18.9
PepsiCo Русский дар 11.6
Carlsberg Group Хлебный край 5.5
Coca-Cola, Inc.
 Кружка и бочка 2.1
Other 22.9

Belarus

Kvass trailer in Grodno, Belarus (2019).

Belarus has several breweries producing kvass: Alivaria Brewery, Babrujski Brovar [be; be-tarask], and Krinitsa [be; be-tarask]. It also has a variety of kvass tasting and entertainment festivals.[29] The largest show takes place in the city of Lida.[30]

Poland

Varieties of natural kwas chlebowy.
Kvass tap at a festival in Poznań.
Polish kvass served alongside kefir, kolach and korovai.

Kvass may have appeared in Poland as early as the 10th century,

Austrian Galicia, especially the inhabitants of rural areas.[32] Up until the 19th century, recipes for local variants of kvass remained well-guarded secrets of families, religious orders, and monasteries.[33]

The beverage production in Poland on an industrial scale can be traced back to the more recent interwar period, when the Polish state regained independence as the Second Polish Republic. In interwar Poland, kvass was brewed and sold in mass numbers by magnates of the Polish drinks market like the Varsovian brewery Haberbusch i Schiele or the Karpiński company.[34] Kvass remained particularly popular in eastern Poland.[32] However, with the collapse of many prewar businesses and much of the Polish industry during World War II, kvass lost popularity following the aftermath of the war. It also gradually lost favour throughout the 20th century upon introducing mass-produced soft drinks and carbonated water into the Polish market.[35][24][22] In the early 21st century, kvass experienced a renaissance in Poland due to the heightened interest in healthy diets, natural products, and traditions.[24]

Kvass can be found in some supermarkets and grocery stores, where it is known in Polish as kwas chlebowy ([kvas xlɛbɔvɨ]). Commercial bottled versions of the drink are the most common variant, as some companies specialise in manufacturing a more modern version of the drink (some variants are manufactured in Poland whilst others are imported from its neighbouring countries, Lithuania and Ukraine being the most popular source).[36][37] However, old recipes for a traditional version of kvass exist. Some of them originate from eastern Poland;[38] others from more central regions include adding honey for flavour.[39] Although commercial kvass is much easier to find in Polish shops, Polish manufacturers of more natural and healthier variants of kvass have become increasingly popular both within and outside of the country's borders.[40][24] A less healthy alternative of quick-to-make variants using kvass concentrate can also be purchased in shops.[41] One colloquial Polish name for kwas chlebowy is wiejska oranżada ('rural orangeade').[22] In some Polish villages, such as Zaława and its surroundings, kvass was traditionally produced on every farm.[42]

Latvia

A 19th century engraving by Dessin de d'Henriet depicting kvass vendors in Livonia.
A kvass street vendor in Rīga (1977).

In Latvian, kvass was also called dzersis.[43] After the dissolution of the Soviet Union in 1991, the street vendors disappeared from the streets of Latvia due to new health laws that banned its sale on the street. Economic disruptions forced many kvass factories to close. The Coca-Cola Company moved in and began quickly dominating the soft drink market. In 1998, the local soft drink industry adapted by selling bottled kvass and launching aggressive marketing campaigns. This surge in sales was stimulated by the fact that kvass sold for about half the price of Coca-Cola. In just three years, kvass constituted as much as 30% of the soft drink market in Latvia, while the market share of Coca-Cola fell from 65% to 44%. The Coca-Cola Company had losses in Latvia of about $1 million in 1999 and 2000. Coca-Cola responded by purchasing kvass manufacturers and producing kvass at their own soft drink plants.[44][45]

On 30 September 2010, the Saeima (parliament) adopted quality and classification requirements for kvass, defining it as "a beverage obtained by fermenting a mixture of kvass wort with a yeast of microorganism cultures to which sugar and other food sources and food additives are added or not added after the fermentation" with a maximum ABV of 1.2 percent, and differentiating it from an unfermented non-alcoholic mixture of grain product extract, water, flavourings, preservatives, and other ingredients, which is designated as a "kvass (malt) beverage".[46]

In 2014, Latvian kvass producers won seven medals at the Russian Beverage exposition in Moscow, with

Ilgezeem's Porter Tanheiser kvass winning two gold medals.[47] In 2019, Iļģuciema kvass ranked second in the Most Loved Latvian Beverage Brand Top,[48][unreliable source?] and first in the subsequent 2020 top.[49][unreliable source?
]

Lithuania

In Lithuania, kvass is known as gira and is widely available in bottles and drafts. The first written records of kvass and kvass recipes in Lithuania appeared in the 16th century.[citation needed] Many restaurants in Vilnius make their own kvass, which they sell on the premises. Some brands of mass-produced Lithuanian kvass are also sold on the Polish market.[36] Strictly speaking, gira can be made from anything fermentable—such as caraway tea, beetroot juice, or berries—but it is made mainly from black bread, or barley or rye malt.

Estonia

A street kvass barrel used during the Estonian SSR.

In Estonia, kvass is known as kali. Initially, it was made from either

preservatives, and artificial carbonation.[50]

Finland

In Finland, a fermented drink made from a mixture of rye flour and rye malt was ubiquitous in parts of

Eastern Finland and was heated in the oven. It was called kalja (which can also be used to refer to small beer) or vaasa (in Eastern Finnish), while nowadays the drink is often known as kotikalja (lit. 'home kalja') and is available in many work canteens, gas stations, and lower-end restaurants.[23]

Traditionally, kalja was usually made in households once a week from a mixture of malted and unmalted rye grains. Other grains, such as oats or barley, were also sometimes used; occasionally, leftover potatoes or pieces of bread were added. Everything was mixed with water in a metal cauldron or a clay pot and kept warm in the oven or by the stove for at least six hours for the mixture to darken and sweeten. Sometimes, the grain solids were filtered out through

spontaneously or in more recent times with commercial baker's yeast. In the early 20th century, with sugar becoming more readily available, it started replacing the malting process, and modern kalja is made from dark rye malt, sugar, and baker's yeast.[51]

Sweden

Kvass was also made in Sweden, where it was known as bröddricka (lit. 'bread drink'). However, it was very likely limited only to areas where rye bread was the standard bread as opposed to crispbread, which was more common in Western Sweden and did not go stale. Bröddricka was still being made in Öland farms up until 1935.[23]

China

Kavas served in a restaurant in Ürümqi, Xinjiang.

In the mid-19th century, kvass was introduced in Xinjiang, where it became known as kavas (Chinese: 格瓦斯; pinyin: géwǎsī) and eventually became one of the region's signature drinks.[52] It is usually consumed cold together with barbecue.[53] In 1900, Russian merchant Ivan Churin founded Harbin Churin Food (秋林 Qiulin) in Harbin, offering kvass and other specialities, and by 2009, the company was already producing 5,000 tons of kvass a year, making up 90% of the local market. In 2011, it moved its kvass factory to Tianjin, increasing its sales to 20,000 tons in the first year.[54]

Elsewhere

Following the influx of immigrants in the UK due to the 2004 enlargement of the European Union, several stores selling cuisine and beverages from Eastern Europe were established, many of which stock imported (primarily pasteurised) kvass. As a result, since then a number of different flavours of not-pasteurised kvass, fermented using sourdough starter culture, have also become available in the UK in 2023.[55] In recent years, kvass has also become more popular in Serbia.[56]

In 2017, a version of kvass from carrots or beets was developed in California by the producer Biotic Ferments.[57]

Nutritional composition

Naturally fermented kvass contains 5.9%±0.02 carbohydrates, of which 5.7%±0.02 are sugars (mostly

niacin respectively. In addition to that, 19 different aroma volatile compounds have also been identified in naturally fermented kvass, most notably 4-penten-2-ol (10.05×107 PAU), which has a fruity odour; carvone (2.28×107 PAU) originating from caraway fruits used as an ingredient in rye bread; and ethyl octanoate (1.03×107 PAU), which has an odour of fruit and fat.[7]

Traditional kvass made from rye wholemeal bread has been found to have, on average, twice the

reducing sugar content than industrially produced kvass.[58]

Historically,

former Soviet Union.[59]

Use

Apart from drinking, kvass is also used by families as the basis for many dishes.

botvinya, and tyurya
, are based on kvass.

Cultural references

Vassiliy Kalistov, Street vending of kvass (1862), Chuvash State Art Museum, Russia

The name of Kvasir, a wise being in Norse mythology, is possibly related to kvass.[62][63][64][65][66]

There is a Russian expression, Перебиваться с хлеба на квас (literally 'to clamber from bread to kvass'), which means 'to live from hand to mouth' or to 'scrape by'[67] referring to the frugal practice amongst the poor peasants of making kvass from stale leftovers of rye bread.[68] Another kvass-related term in Russian is "kvass patriotism [ru]" (квасной патриотизм) dating back to an 1823 letter by the Russian poet Pyotr Vyazemsky who defined it as "unqualified praise of everything that is your own".[69]

In the Polish language, several traditional sayings that reference kwas chlebowy exist.[42] There is also an old Polish folk rhyming song. It shows the history of kvass in the country as having been drunk by generations of Polish reapers as a thirst-quenching beverage used during periods of hard work during the harvest season, long before it became popular as a medicinal drink among the szlachta. The song goes as follows:[70]

In the Polish village of Zaława, there is a customary game known as wulkan ('volcano') that is associated with the beverage. The fermentation of sugars makes kvass slightly carbonated, thus, when shaken or heated, it can cause the liquid to suddenly and rapidly rise out of an open vessel. Playing wulkan consists of vigorously shaking a bottle of kvass shortly before handing it to someone else who is going to drink it; the sudden "shooting out" of the beverage onto the person opening the bottle is a source of entertainment for the youth of Zaława and a well-known prank during regional festivities.[42]

In Tolstoy's War and Peace, French soldiers are aware of kvass on entering Moscow, enjoying it but referring to it as "pig's lemonade".[71] In Sholem Aleichem's Motl, Peysi the Cantor's Son, diluted kvass is the focus of one of Motl's older brother's get-rich-quick schemes.[72]

See also

References

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External links

  • Media related to Kvass at Wikimedia Commons
  • The dictionary definition of kvass at Wiktionary
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