What is
Žinčica or Žinčice is a drink made of sheep milk whey similar to kefir. It is a by-product in the process of making bryndza cheese.
  
Whole milk is the raw, unpasteurized milk obtained from mammals like cows, buffalo, goat, sheep, yak, camel.
  
Origin
Czech Republic, Poland
  
East European countries- Bulgaria, Czech Republic, Ukraine