But some sake makers have begun producing stronger alcohol products to meet the demand for sanitizer.
Japan beverage giant Suntory is already manufacturing sanitizer in the United States, the country hardest-hit by the outbreak.
Under Japanese regulations, liquids designed for disinfection should contain between 76.9 and 81.4 percent alcohol content.
Any more than this is less effective and should be diluted, officials say.
Japan has so far been spared the disastrous outbreaks seen in Europe and the US, but a recent spike in cases — especially in Tokyo — has raised concerns.
The coronavirus has killed 109 people domestically and infected more than 7,600.