According to historical sources, buza was being made 8000 years ago. There is information that buza was being made in ancient Mesopotamia. This drink is among the favorite among the peoples living in Macedonia, Albania, Turkey, Bulgaria, Romania, as well as in the North Caucasus and South Siberia. The word «buza» itself comes from the Persian «boza», which means «millet, barley».
Buza is an ancient national drink of the Bashkir people. Earlier buza was not widespread in the territory of residence of the Bashkirs, there were also local differences in the methods of its preparation. The recipe for the drink, as can be seen, has undergone significant changes over time.
As E. V. Migranova notes, according to field materials and other ethnographic sources, buza was known in the Uchalinsky, Baimaksky, Abzelilovsky, Beloretsky districts of Bashkortostan, that is, in the Trans-Urals and in the southernmost districts of the republic. In this region the drink was prepared on the basis of barley, which echoes the South Siberian traditions, because for some peoples of South Siberia (Altaians, Khakas, etc.) the thick drink pozo, bozo from sprouted barley grains was traditional. Among the Shors, Tubalars and Kumandins it was a ritual in the rites associated with sacrifices.
The ancient Greek writer, historian and military leader Xenophon mentioned in his works that Greek soldiers tasted buza in Armenia. Later the Venetian diplomat and merchant Giosafat Barbaro wrote about the drink «bossa». German scientist Carsten Niebuhr, travelling in eastern countries, also noted this drink. Here is one of the old recipes for making buza. Buza is prepared from sprouted barley with the addition of ground toasted oats. Sometimes interior fat is added to get the foam.
Buza can also be made from rolled oats. The color of the drink made from oats will be slightly darker than usual. If you dry the oats a little, its characteristic sour taste will disappear. First, melt the interior fat, then put the ground barley grains in it and cook over low heat for about an hour. Then add the crushed oats and a glass of flour to this mass. The resulting mass should be poured into another vessel, adding yeast and one or two glasses of sugar. After that all this is left in a warm place for about two days, not forgetting to stir from time to time. When the grain mass turns sour, it is necessary to strain it several times through a coarse sieve. If the mixture is too thick, you need to pour a little water into it, stirring thoroughly.