Provided is an antibacterial glass which can be accommodated in a narrow accommodating space in an antibacterial water unit for supplying antibacterial water to a washing tube of a washing machine is capable of effectively suppressing the occurrence of black mold and the like in the washing tub and can effectively inhibit bacteria on laundry while suppressing discoloration thereof. An antibacterial glass for releasing silver ions and exhibiting antibacterial effects in direct contact with water the AgO content thereof being within the range of more than 5 wt% to 10 wt% or less the PO and CaO content being within a predetermined range the ZnO content being less than 10 wt% and the KO AlO and MgO content being within a predetermined range with respect to a total quantity of 100 wt% and the shape of the antibacterial glass being a doublet shape having a maximum diameter in a predetermined range.
