the receptacle 26 so that the front wall 11 of the casing bridges between the outer terminal edges of the side flanges 42 and 43 to define a restricted passage or channel for the items in the receptacle at the lower end of the base plate 41 the shoe has a bottom wall 44 which extends outwardly to the front wall 11 and across the full width of the receptacle between the side flanges 42 and 43 of the shoe the shoe is formed of a thermally conductive material throughout so as to provide a uniformly controlled temperature within the receptacle by reason of the base plate 41 and the side flanges 42 and 43 overlying the bottom wall 44 in the present the bin 31 is a stainless steel chute interfitted with the bottom of the shoe flush against the side flanges 42 and 43 and the bottom wall 44 so as to provide thermal conductivity between the stainless steel chute forming the bin 31 and the shoe in this way the bin is maintained at the same temperature as the shoe thereby providing a uniform control of the temperature of the items which are stacked up within the receptacle 26 as well as the items discharged through the discharge opening 32 into the outwardly projecting part of the bin 31 in order to assure proper temperature control of the items in the receptacle the spacing between the base plate 41 of the shoe and the front wall 11 is limited so that no.