Tasting review of Asahi Oishii Mizu Natural Water Salty Grapefruit, a refreshingly easy drink that can also help prevent heatstroke

Asahi Drink has launched a new addition to its Oishii Mizu natural water line: "Oishii Mizu Tennensui Salty Grefru," a 600ml PET drink with grapefruit flavor, salt, and vitamin C.

The product is positioned as a hot-weather hydration option and was released on May 19, 2026 for everyday use and heatstroke prevention.

Tasting impressions say it is refreshing and easy to drink, with sweetness and acidity that are not too strong.

The new offering expands Asahi Drink's functional beverage lineup for summer hydration.