Scienceware Contact Plate Rack can reduce handling accidents during transport and incubation of critical contact plates. Each rack holds up to 60 contact plates with lids in a stable configuration protected from knock-over and lid-displacement. The small footprint preserves benchtop and incubator space and racks interlock when stacked maintaining stability while preserving additional space. The center handle does not interfere with the samples and provides space for labeling. To maintain sterility and ensure long-term performance, all parts are molded of white polypropylene and can be steam autoclaved at 121 C.