Lobster sauce is China's traditional food, like bean paste, is indispensable to people's daily life. It is not only can cook vegetables, stewed fish, also can be fried or steamed food, can also be used boiling water bubbles out juice instead of soy sauce.

Lobster sauce with black bean and soybean as raw material, after cleaning, cooking, cooling into the VAT after fermentation, salted, dried, and finally, by salt and not divided into brackish two. It is reported, lobster sauce is the earliest people called it the "lonely", because in ancient times to soybean called "Shu", "lonely" is the beans cooked, claustrophobic fermentation. To the Qin Dynasty, it was renamed the "bean", this name still in use.
Douchi reason love food, not only because of its delicious, delicious, and it is rich in nutrients, protein, fat and calcium, phosphorus, iron, cobalt, selenium, molybdenum, thiamine, riboflavin, niacin and other trace elements contain large amounts of. Test proves, tempeh nutrient almost with beef, lobster sauce 393% of protein and 22.7% fat content of beef, bean 8.2%, beef 4.9%.

The study also confirms, the content of cobalt in lobster sauce is 40 times that of wheat, has a good preventive effect on coronary heart disease; molybdenum content is 50 times that of wheat, the content of selenium food than high selenium garlic, onion is also high, and molybdenum and selenium has a strong anti-cancer effects. A lot of urokinase thrombolytic lobster sauce also contains the formation, can effectively prevent cerebral thrombosis, is the effect of improving blood flow to the brain and the prevention and treatment of senile dementia.

In China's traditional medicine, lobster sauce is often used to treat sputum, chest tightness, nausea, indigestion, memory loss and drunken embolism.
The Ming Dynasty pharmacologist Li Shizhen analysis: "black flat, as with the temperature, both steam heat, so it can be scattered. Have green onion sweating, salt can spit, wine is treating wind, garlic is hemostatic, fry, and antiperspirant, also ephedra root ganglion of righteousness." Modern medicine thinks, lobster sauce with a solution form the effect of clearing away heat, Touzhen detoxification, applicable to wind heat headache, vomiting, bosom is frowsty sputum virtual trouble embolism.