What is
Whole milk is the raw, unpasteurized milk obtained from mammals like cows, buffalo, goat, sheep, yak, camel.
  
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.
  
Origin
East European countries- Bulgaria, Czech Republic, Ukraine
  
Czech Republic, Poland