To provide a hydrogen-containing water product which maintains the oxidation-reduction potential at a low value even when a certain period of time elapses after manufacture.A hydrogen-containing water product for beverage including: a packaging container with a straw having a sealing cap attached to an opening hydrogen-containing water filled in the container under pressure and a gas atmosphere that is generated in a space above the hydrogen-containing water in the container by a heat treatment conducted after the filling under pressure and is present even when at least 90 days elapse after generation, wherein the hydrogen-containing water has an oxidation-reduction potential of {[−59×(pH value of hydrogen-containing water in hydrogen-containing water product for beverage after elapse of 90 days)]−170} mV or less when being stored at normal temperature for at least 90 days after manufacture.
