Process for producing detergent and the like in reusable and recyclable receptacles, recyclable and reusable receptacles and apparatus for use of filled receptacles

A recyclable, reusable container comprising:

• a unitary molded thermoplastic container body including a closed bottom end, an opposed open top end and a sidewall tapering upwardly and outwardly from the bottom end to the top end at a stacking angle of from about 2.degree. to about 7.degree., an outwardly directed step shoulder defined in the sidewall intermediate the bottom end and the top end of the container body and defining a single outwardly stepped sidewall portion adjacent the top end of the container body and extending between the shoulder and the top end, an outwardly facing surface of the outwardly stepped sidewall portion including an external threaded portion defined thereon for threadably engaging a corresponding set of internal threads provided on a matable cover member, said shoulder being positioned so that when a plurality of the containers are stacked together in a telescoping nested relationship with the bottom end of an upper container being inwardly disposed adjacent the bottom end of an adjacent lower container, the outwardly directed stepped shoulder of the upper container rests against the top end of the adjacent lower container to prevent a vacuum being formed therebetween to facilitate unstacking of the containers for use and so that only the externally threaded stepped sidewall portion of the upper container remains exposed above and adjacent the externally threaded stepped sidewall portion of the lower container to provide minimum stack height, the bottom end including an inwardly and upwardly directed dome-shaped region therein including a handle grip portion defined in an outwardly facing side of the dome-shaped region, the container body defining an open, smoothly rounded container cavity without any undercut portions adapted to storably receive and completely discharge material contents placed therein for storage and dispensing.