A container for use in liquifying granular detergent and thereafter dispensing such liquified detergent to an industrial dishwashing machine, in which the container has a threaded end cap having a 2" center hole through its 4" diameter flat end and a flush plate attached to the end cap through a parallel spacing of 1/8". Hot water is directed through the space between the end cap and the flush plate, with a portion of the hot water being diverted through the hole in the end cap to engage any detergent not falling through the hole onto the flush plate.