Abstract: This invention, in addition to both more adequate disinfection effect and more adequate cleaning effect, offers a better electrolyzed alkaline water production unit and a better electrolyzed alkaline water production method in terms of storage stability before use or safety in comparison with strong alkaline solution. An alkaline water sterilizer 100 produces electrolyzed alkaline water by electrolyzing tap water which is neutral water by an electrolyzed alkaline water production unit 100a. Then, the electrolyzed alkaline water thus produced is electrolyzed by a hypochlorite water production unit 100b to produce hypochlorous acid by electrolysis and hypochlorite water having a pH value of at least 10 or more is produced as alkaline sterilizing water.

Abstract: There is provided an apparatus for producing strong alkaline reductive electrolyzed water and acidic water that enables efficient production of electrolyzed water that has excellent washing and sterilizing effects. There is provided an apparatus for producing strong alkaline reductive electrolyzed water and acidic water, which includes an electrolyzer provided with a strong alkaline reductive electrolyzed water-producing chamber, an acidic water-producing chamber and a partitioning membrane, wherein a flow path diffusing device is provided in the electrolyzer, and a gap between the cathode plate and the anode plate of 0.1 mm to 1 mm.