Hai Tian soy sauce is dried not just for 180 days. Here you will experience the sun dried brewing process of Hai Tian soy sauce. The Sunning ground and the fermentation tanks used by Hai Tian for naturally fermenting the soy sauce cover an area of more than 600,000 square meters, the size of 70 football fields, which lay in alignment in rows. The glass sun drying rooms glitter in the Sun light like a stretch of “ocean in the Sun light.”