Concentrated lactic-acid milk drink, mixed 1:5 with cold water. Launched 1919 Tokyo, the first Japanese probiotic beverage.
Founder Kaiun Mishima visited Inner Mongolia in 1908, drank fermented mare's milk, and spent a decade developing a shelf-stable lactic version. Calpis launched July 7 1919 in Tokyo — the dotted polka pattern on the label commemorates the Tanabata Milky Way.
Calpis was renamed Calpico in the US in 1991 because the original brand sounded too close to 'cow piss' in English — the only major Asahi Group product under different names in different markets.
Creamy white when mixed, mildly tart from lactic acid, sweet from added sugar, milky-soft body without dairy fat. Drunk over crushed ice in summer; calpis-soda (with carbonated water) is the canned konbini staple. Faint yogurt aroma, no actual milk-fat richness.
Skim milk is fermented twice — first with Lactobacillus helveticus and Lactococcus lactis (yogurt-style), then a second fermentation with yeast that converts residual sugar and develops the signature aroma. Concentrated, sweetened, and pasteurized for 18-month shelf life.
Variations
Original concentrate is the household 1:5 dilution drink. Calpis Water (1991) is pre-mixed PET. Calpis Soda is carbonated. A Japan-only grape-flavored blend was a 2000s summer flavor; Aojiru-Calpis (kale plus calpis) is a wellness-store curiosity.
On the Palate
Where Calpis sits in the Japanese flavor cloud
Ingredients
Serves 1How it's made
4 steps · 4 min active + 1 min waiting
- 11 min
Note: Calpis is a fermented-milk concentrate (commercial product); home riff below.
- 22 min
Combine 30 ml plain yogurt whey + 30 ml simple syrup + 1/2 tsp lactic acid.
Watch outBalance the whey, syrup and lactic acid so it lands milky-tart, not sharp — taste and adjust before diluting.
- 31 min
Dilute 1:5 with cold water; stir until smooth and cloudy.
Watch outDilute 1:5 and stir until it turns evenly cloudy-white with no streaks — that uniform milkiness is the look you're after.
- 41 min
Serve over ice in tall glasses.
