The problem with common spray drying is that temperature is only available in a single dimension -- hot enough to dry, cool enough to prevent nozzle clogging. Pulse drying permits a wider temperature dynamic, which in turn allows you to determine how quickly the particle's shape is frozen into powder. You no longer have to settle for a round particle, the only shape you can now make. Pulse drying "flash dries" liquid into dynamic shapes as it atomizes -- shapes which spray dryers can't produce.