The chamber of a horizontal dryer has the form of a rectangular box with either a flat or a “V” shaped bottom. Nozzles in a box dryer normally spray horizontally, with the dried particles falling to the floor, where they are removed to a bagging area by a sweep conveyor or screw conveyor. Box dryers are usually small and the particle residence time relatively short, requiring the use of low flow nozzles such as the low flow version of the BETE Twist & Dry, which produce relatively small particles.