ZdWHefjDsqCAUWjWAKAZOAsabirakiIwate9/9/2023, 3:54:19 AMZdWHefjDsqCAUWjApparently they use black malted rice. I've never had it before, it's citrusy but sour! I've never had it before, it's citrusy but not sour! I love it so much!Japanese>English