Inside the golden outerwear is the sweet smile.Bite it slightly, sweetness leaves in your mouth,full of sweet smell ,good feeling left in your memory.This is the flavor of Lao Xiangweng baked sweet potato. Lao Xiangweng invented the healthful baked sweet potato device on the basic of smokeless charcoal roasted technology from Taiwan.By using this device, sweet potato can be evenly heated without rolling it and keep the nutrition.