CALPIS a Condensed Lactic Acid Drink Made in Japan. Calpis is a Japanese drink, manufactured by Calpis a subsidiary of Asahi. The beverage has a light, somewhat milky, and slightly acidic flavor, similar to plain or vanilla flavored yogurt or Yakult. Its ingredients include water, nonfat dry milk and lactic acid, and is produced by lactic acid fermentation. This product is a concentrate which is mixed with water, soda water or sometimes milk just before consumption. It is also used to flavor kakigōri (shaved ice) and as a mixer for cocktails and chūhai. It was first marketed on 7 July 1919. It quickly became popular in pre-war Japan, as its concentrated form meant it kept well without refrigeration. Each 470ml bottle of concentrate makes up to 15 glasses of Calpis drinks.