[Problem] To provide a hydrogen-containing water product in which the oxidation-reduction potential is kept at a low value even after a predetermined period has elapsed since manufacture. [Solution] A hydrogen-containing water product for a beverage having: a packaging container with a straw, the packaging container having a sealing cap attached to an opening hydrogen-containing water pressure-filled into the container and a gas atmosphere in a space above the hydrogen-containing water in the container, the gas atmosphere being produced by a heating treatment applied after the pressure-filling and remaining even after at least 90 days have elapsed thereafter, wherein the hydrogen-containing water product for drinking is characterized in that the oxidation-reduction potential of the hydrogen-containing water is {[?59 × (pH value of the hydrogen-containing water in the hydrogen-containing water product for a beverage after 90 days have elapsed)]?170} mV or less when at least 90 days have elapsed in storage under room temperature after manufacture.
