A new Munson (Utica, NY) Ribbon Blender meets sanitary standards and blends up to 65 cu ft (1.84 m3) of powders, pastes or slurries. The unit, model HD-3.5-7-S316, is constructed of #316 stainless steel with continuous welds having 0.25 in. (6 mm) radii polished to 150 grit, a #4 (-32 Ra) interior surface finish and external removable seals. The blender's 2:1 length-to-diameter ratio is said to distribute ingredients uniformly during loading, blending and discharge. It forces a split double-helical agitator through stationary material, producing homogeneous blends in 5 to 6 minutes typical. Tight tolerances of 1/16 to 1/32 in. (1.6 to 0.8 mm) between ribbon blades and the vessel wall minimize residual product in the trough following discharge, reducing material waste and cleaning time.