Northeastern traditional stupid pressed soybean oil is unique to the Northeast

Black-pressed soybean oil is unique to the northeast, because in the north of China, including the three eastern provinces, eastern Inner Mongolia, that is, north of the Yellow River, most of the soybean oil has been eaten for hundreds of years of history. In the south of the Yellow River are eating peanut oil, the Yangtze River basin are to rapeseed oil, cottonseed oil. More to say, the stupid press soybean oil process is unique to the Northeast.