To provide a method for manufacturing a filled product of hydrogen water which can suppress release of hydrogen from hydrogen water.SOLUTION: The method for producing a product filled with hydrogen water is characterized in that the hydrogen water W filled in the can body does not come into contact with a gas other than hydrogen in a sealed state in which the can lid portion is sealed to a can body portion, And is filled in a state of being in direct contact with the inner surface of the can body. In the step of filling the hydrogen water W in the can container 10A, a primary overflow of overflowing the hydrogen water W from the can container 10A and filling with hydrogen water W And a secondary overflow of overflowing the hydrogen water W from the can body, in a step of attaching the can lid portion to the can container 10 A, filling the can body with the hydrogen water W, filling the can lid In the step of attaching the part 12, a secondary overflow is caused by pushing the can cover part 12 into the can container 10 A while applying a predetermined pressure thereto.BACKGROUND OF THE INVENTION【課題】水素水からの水素の放出を抑制できる水素水の充填製品の製造方法を提供する。【解決手段】水素水の充填製品の製造方法であって、缶体内に充填する水素水Wは、缶蓋部を缶胴部に封着した密封状態において、水素以外の気体と接触せず、且つ缶体内面に直接接触した状態で密封充填されるものであり、水素水Wを缶容器10Aに充填する工程において、水素水Wを缶容器10Aから溢水させる一次オーバーフローと、水素水Wを充填した缶容器10Aに缶蓋部を取り付ける工程において、水素水Wを缶体から溢水させる二次オーバーフローとを生じさせ、水素水Wを缶体に満注充填するようにし、缶容器10Aに缶蓋部12を取り付ける工程は、缶蓋部12に対して所定圧力を加えつつ缶容器10Aに押し込むことで二次オーバーフローを生じさせる。【選択図】図1
