In Dongkeng Town, Dongguan City, there is a special product that enjoys a good reputation at home and abroad - Yincai, which has been handed down for hundreds of years and has become an object for overseas sons to寄托their nostalgia. Dongkeng Yincai looks like pine roots, with a reddish-yellow color. It is made by a combination of drying and air-drying methods, creating a highly nourishing substance, enjoying the美誉of "Dongkeng ginseng". In the past, when people from Dongkeng went out to make a living and returned home, they always took some Yincai back to their places of residence such as San Francisco, Singapore, and Chile, carrying deep homesickness. Thus, "Dongkeng Yincai" became famous all over the world.