Since the Shang and Zhou Dynasties, China has been taking grain as its staple food, but rice was not widely planted at that time, so rice was not included in the grain at that time. During the Spring and Autumn Period, Warring States Period, Qin and Han Dynasties, the grain and grass in the army were the whole grains we now understand.
According to legend, Qin Jun suffered from miasma when he arrived in Guangxi. Because he didn't adapt to the local climate, many people were angry, hot and depressed. In the contest with the aborigines, the commander was killed. At that time, the Lingqu was not built, the army's food and grass dried up, and hunger eroded Qin Jun's will to fight. Just when Qin Jun panicked, a soldier's advice saved Qin Jun's last fighting capacity.
The record of this battle in Huai Nan Zi Ren Xun is as follows: "(Qin Shihuang) ordered Wei Tu to send 500,000 troops, one for the five armies, one for the fortress of the city, one for the fortress of Jiu Yi, one for Panyu, the capital, one for the border of Ye Nan and one for the balance of dry water. For three years, I didn't understand crossbows, which made Lu Lin unable to pay. In order to fight against the Vietnamese and kill the Xi 'ou army, the soldiers dug trenches to open the route for providing foodstuff. The Vietnamese people are all in the jungle. They are with animals, so they don't want to be Lu Qin. Jie Jun, in the opposition, thought he would attack the Qin people at night and break them. Kill the captain, kill him, hundreds of thousands of people were killed, so I issued a warning and prepared. "
Because the soldier is poor and his family lacks food, he usually makes some adjustments in his diet: first, cook the food like porridge, take it out before the soup is turbid, and add water to cook it until it is cooked. Those clear soups with grain flavor are called "grain gas" and can be used as soup. Re-cooked grains become the staple food as usual. In the long run, he found that the youngest in the family no longer felt hungry as before. To this end, Qin Jun changed the original eating habits, so that a small amount of food can also play its role to the maximum extent.
What's even more surprising is that the soldiers' excessive internal heat and heat were quickly relieved, which solved the big problem that troubled Qin Jun. In order to reduce the excessive internal heat and heat of the soldiers, the military doctors cooked herbal soup, but they didn't want to cause diarrhea for most soldiers. After examination by the military doctor, it was found that herbal soup could inhibit internal heat, but it was too cold. "Gucci" is made of cooked grain, which is mild in nature and will not burden the stomach. Its appearance really gave the soldiers hope. Today, in Guangdong, Guangxi, Fujian and other places, the habit of boiling mung bean and barley soup to eliminate dampness, reduce fire and detoxify is still retained. This is probably not unrelated to history.
Pursuing that history, we found the trace of "Gucci". After the changes of the times and the changes of science and technology, it has a brand-new name-"Five Grains Tea".