How to keep the dried ginger still yellow after drying? Some clients will steam the sliced ginger before drying.The steamed ginger slices will keep the golden yellow color, with higher hardness, and more crisp. While the ginger dryer plays an important role in retain the color.Therefore, how to control the drying temperature and humidity exactly can tell the quality of the ginger hot air dryer. By Twsix Kion heat pump dryer, the drying temperature difference between the target temperature and the temperature inside the drying chamber can be ±2degree C. And the humdity, clients can set the targe humidity by our ginger dryer's controller.