[Subject] The carbon as the hydrogen carrier in the food can send sufficient hydrogen to the deep part of the intestinal tract. This patent is based on this idea to make the active oxygen harmless. [Solution] The capping method for getting the hydrogen-reduced food, characterized by that: a plurality of caps attached with carbon fine particles are loaded into the cap catcher in the hydrogen atmosphere. After the water or processed food from the storage tank is filled into the highly airtight vessel, blow the hydrogen gas or water vapor or both to purge the upper space of the vessel when capping it.
