One day, when Tang Hao was busy working in the backyard workshop, Li Wanqing took the initiative to give Tang Hao a hand.


    Because it is the research and development of new technology, his daughter-in-law starts it, Tang Hao is also more relieved.


    According to Tang Hao''s instructions, Li Wanqing cut the potatoes into small pieces and put them into the big stone grinding eyes in the workshop. Under the great pressure of the turntable, the potatoes were quickly ground into pulp and lay down along the grinding groove of the grinding plate.


    After dozens of times of double-layer spinning filtration, about 20% of the starch is filtered out from a large bucket full of potato juice. Then, Tang Hao and his wife brought the starch to the internal workshop, closed the door and began to make new food.


    Li Wanqing, who was wrapped in a work scarf, hung the drawn vermicelli on the pole one by one. Tang Hao was excited. After an hour, the vermicelli began to condense.


    Tang Hao broke one at random and put it in his mouth to try the taste. After trying several, he reconciled and grasped the materials very well, because it tasted really good. It was stronger than noodles. With delicious seasoning, it was definitely an excellent food. Ten kilograms of potato juice finally produced two kilograms of finished noodles.


    The input-output is relatively cost-effective, and it can be made into vermicelli and get rid of water. As long as the storage environment is dry, there is no problem to put it for two or three years.


    In Datang, an era without preservatives and vacuum, it is a miracle that a food can be stored for two or three years.


    "It''s converted according to the output of 10 to 1," Tang Hao thought with his chin. "The price of one kilogram of noodles is sold according to the price of 15 kilos of potatoes, which just covers the manual labor cost."


    Although vermicelli is an innovative food, the price can not be set too expensive. It has become a luxury that only aristocrats can afford. The original intention of planting potatoes is to benefit the people, so fans should also benefit the people.


    Chang''an City blacksmith workshop became prosperous again because of the successful development of Tang Hao''s noodles. A big millstone was moved into the general''s house of the town. It looked like a Gobang. Iron flakes are sent to the general''s house, and after secondary processing, they become tools for soil leakage soybean milk.


    One by one, the millstones turned, and the barrels of white soybean milk were full. Princess Changle and Li Wanqing kiss their hands in front of the millstone in the yard. The fat uncle of the back kitchen presses down the vermicelli in the boiling water pot. The back kitchen aunt is busy taking out the vermicelli from the boiling water.


    Handfuls of vermicelli were hung on the wooden frame, thick and thin. Various shapes of vermicelli were dried all over the backyard of the general''s house. Later, the output of vermicelli was too large. Tang Hao simply changed the tea shop and wine shop where efficiency was not sought into vermicelli workshop to improve the output.


    That day, Li Jing, the father-in-law, strolled to his son-in-law''s general''s house. Tang Hao was still dozing on the cool chair. The father-in-law leaned in his ear and said, "Xian son-in-law, lend me a few sets of your noodle tools. Your mother doesn''t want to eat pimples every day. You have to change your taste."


    Gulu suddenly woke Tang Hao up. When he opened his eyes, he saw the old father-in-law standing next to him. He hurriedly said, "my good father, what tools do you want? I''ll let the family send them in person, and I''ll let you run in person."


    After the move, the little servant girl next to him ran to the backyard to arrange.


    Tang Hao turned to his father-in-law and said solemnly, "father-in-law, who is filial to my mother-in-law Hongfu, thank you and her for cultivating Wan Wan''s such a good daughter and allowing me to marry such an excellent wife. However, if others want tools, they have to spend money."


    "Oh, my good son-in-law, you said that. Princess Xiao Shufei and her cousin mentioned it yesterday." Li Jing thought Tang Hao was too serious about it.


    "Dad, you don''t understand. The general''s office doesn''t care about the money for selling tools. It cares about innovative thinking and R & D quality. Whoever is willing to use his brain will get tangible benefits," Tang Hao said.


    Looking at his father-in-law''s attention, Tang Hao then said: "the powder preparation equipment made by the general''s house means that Datang has more means of settling down and means that a family has more possibilities of prosperity."


    "And Dad," Tang Hao said at this time, "when you and uncle Cheng and uncle Qin Qiong fought Wagang, they understood that man is an animal of interest. Any positive action must be driven by interest. In short, it is real gold and silver, or a noble position."


    My father-in-law is thoughtful. Indeed, the reward of military merit in the war years prompted the hot-blooded men to fight with blood. In the current stable period, people are given material rewards for innovative actions. Many basic problems, such as the current high yield of potatoes, will not be digested for a while and a half, and then fans will be born. These problems will be solved.


    Looking at the old father-in-law, Tang Hao was fascinated. He smiled and said, "father-in-law, you haven''t eaten yet. Stay here for lunch. The cook just developed a new food yesterday to ensure that you still want to eat."