Pulse Combination Systems offers custom drying at its Payson, AZ facility. This toll drying service is suitable for testing new products or evaluating new markets prior to purchasing new drying equipment. PCS has two pulse combustion spray dryers available for toll drying with water evaporation rates of 40 or 400 lbs. per hour. Various configurations can help optimize powder characteristics such as nutrient viability, particle size, texture and flavor.