<P> Kefir or kephir ( / kəˈfɪər / kə - FEER ) , alternatively milk kefir or búlgaros , is a fermented milk drink that originated in the Caucasus Mountains made with kefir `` grains '' , a yeast / bacterial fermentation starter . It is prepared by inoculating cow , goat , or sheep milk with kefir grains . Traditional kefir was made in goatskin bags that were hung near a doorway ; the bag would be knocked by anyone passing through to help keep the milk and kefir grains well mixed . </P>
<P> Kefir or kephir ( / kəˈfɪər / kə - FEER ) , alternatively milk kefir or búlgaros , is a fermented milk drink that originated in the Caucasus Mountains made with kefir `` grains '' , a yeast / bacterial fermentation starter . It is prepared by inoculating cow , goat , or sheep milk with kefir grains . Traditional kefir was made in goatskin bags that were hung near a doorway ; the bag would be knocked by anyone passing through to help keep the milk and kefir grains well mixed . </P>
where did the first kefir grains come from
where did the first kefir grains come from
the Caucasus Mountains
the Caucasus Mountains