When I returned home from school, Mrs. Wu had already completed all the purchases, and Wu Qing said to Mrs. Wu: "Mother, in the future, you will be in the house, and I will be outside the house." I will teach you the art of making zuò shaved ice and popsicles first, and our family will not have to worry about food and clothing in the future. ”

Aunt Wu seemed to have some hidden worries in her eyes, Wu Qing understood very well that the people of this era would rather be farmers than do business, and the status of businessmen was too low.

Wu Qing said with a smile: "Mother, although the status of the businessman is low, the most nourishing life is also this businessman, not to mention that the most inseparable person in the world is also a businessman, relying on his own skills to eat, not ashamed." ”

Wu Qing's statement finally made Aunt Wu feel a lot more at ease, and she didn't doubt when Wu Qing would have so much ability, in Aunt Wu's consciousness, maybe it was because her children had read a lot of books in the past few years.

Seeing that the worry in Aunt Wu's eyes faded, Wu Qing didn't care about anything else, and took things to the backyard, he had to do the test first, although in theory saltpeter ice making can be successful, but it still has to be tested, only practice tests the truth. Wu Qing took out the saltpeter, put it in a mortar and ground it into powder, and then kept it for later use. Then he took out a wooden box of about three feet, and after opening it, Wu Qing was very satisfied, there were more than ten rows of regular lattices in the wooden box, and each lattice was three inches long, one inch wide, one inch high, and one and a half inches high. Wu Qing took clean water, and then slowly poured each grid, and then found a small soup spoon, used the soup spoon to take a little bit of ground saltpeter powder, put it into one of the grids, and soon the saltpeter dissolved in water, and in a few seconds, the water in the entire grid slowly turned white, and finally turned into ice completely. Wu Qing was so happy in his heart, how could it be so easy?

Aunt Wu's eyes were dumbfounded, and the whole person was in shock, she didn't expect this saltpeter powder to be so magical, she really couldn't imagine that it was her son who could do this, and her son was worthy of being a prodigy.

Wu Qing's face was still stern, turning into ice so quickly, it seemed that there was too much saltpeter. So after waiting for a while, after getting the ice out, it was the prototype of a popsicle. Wu Qing licked it with his tongue, and there was a spicy taste in the bitterness.

How so? Wu Qing first wanted to reduce the amount of saltpeter powder, and then put in another grid, and soon it froze again, Wu Qing still took it out and tasted it, it was still bitter and spicy, but it seemed to be slightly lighter. In this way, Wuqing had to slowly reduce the amount of saltpeter and conduct experiments one by one.

There is less saltpeter powder, which affects the time of freezing, and finally leads to a mixture of ice and water, so Wuqing's test is to slowly adjust the amount of saltpeter, water consumption, and the temperature, room temperature, humidity, and the quality of saltpeter at that time, and then make a complete test formula, which is considered to be completed, and this time is quite long. Of course, for the temperature and humidity, Wuqing can't measure it, only some general words can describe it.

Aunt Wu is a literate person, which surprised Wu Qing, because it is rare for women to be literate in this era, and few women from ordinary people are literate. It seems that Aunt Wu also had a story in the past.

Wu Qing wrote and painted, although the text was written in the font of the Tang Dynasty, but some chemical symbols were added, and the counting was entirely in Arabic numerals. When watching Wu Qing constantly write strange symbols with a brush on rice paper, Aunt Wu had to look carefully for a long time and did not interrupt Wu Qing.

Statistics is a very good subject, in his previous life, Wu Qing was very interested in statistics, I remember that high mathematics was not good at that time, but probability and statistics are definitely the top. And this discipline is really useful for a lifetime.

The test takes 48 hours, or two days, to do the test in one day, then take notes, and repeat the same steps in one day as a comparison test on the first day. Then through the guò comparison, in the same time of the change of the number of experiments jù, through the difference to get the optimal number of trials jù, and this number jù will become the number of operations jù, popsicles and shaved ice business can also begin.

After two days of sleepless experiments, and after comparing the best formula, Wu Qing finally slept for a long time, and also had a long dream, in which he became the CEO of the entire Tang Empire.

When Wu woke up, Aunt Wu was making more than ten popsicles in the workshop, and according to Wu Qing's requirements, bamboo skewers were added for consumption and put away, and the popsicles were put into a wooden box tightly wrapped in white cloth. Wu Qing opened it and looked at it, and then tasted it, the bitter and spicy taste was very light and light.

Seeing his son's smile, he knew that he was doing a good job, and then he took out a dark red popsicle and said, "You taste this, I put in a little honey as you envisioned." ”

After Wu Qing took it, he licked his tongue, and sure enough, it smelled of honey. It seems that Aunt Wu really has a talent in this area.

At the moment, he said: "Mother, you have done a very good job, but this honey seems to be more expensive, not cost-effective, I think it is good to add sugar water and some colored juices." ”

Hearing her son say this, Aunt Wu seemed thoughtful, and then took a bowl of mulberries. This was picked from a mulberry tree in the backyard, Wu Qing originally came to soak in wine, but he didn't expect Aunt Wu to have taken it off.

Wu Qing understood what Aunt Wu meant, so he nodded and said, "It's still my mother's smart, I thought of it at once." Soon the mulberries are mashed and added to the lattice, then honey is added, stirred well with a bamboo chopstick, and saltpeter powder is added. Soon a block of black-red ice formed.

Wu Qing smiled: "Please taste it first." ”

Aunt Wu smiled: "My son is so smart, let's eat with Wei Niang." After speaking, he wrapped an ice cube in a handkerchief and handed it to Wu Qing, Wu Qing stretched out his mouth and bit off a piece, Wu Qing instantly frowned.

Aunt Wu hurriedly asked, "Isn't it delicious?" ”

Wu Qing jumped and said, "Mother, we succeeded, that's the taste." ”

“”

"I mean, it tastes the same as I was supposed to." Wu Qing immediately corrected it.

Aunt Wu gently bit on Wu Qing's tooth marks, and then showed a smile and said, "It's just too cold, it makes people's heads hurt." ”

Wu Qing said with a smile: "This kind of thing is a good product to cool off the heat, why should our family worry about bad business?" "It seems that I remembered something again, by the way, I can make the shaved ice, mother, you can take a look."

Wu Qing took out a popsicle from the storage box, then put it in a bowl and mashed it, added a few mulberries and a spoonful of honey, and quickly stirred well. Then he scooped a spoonful with a spoon, handed it to Aunt Wu's mouth, and said, "Mother, taste it first." ”

Aunt Wu woke up from her daze, and then put it in her mouth, with a satisfied expression on her face, and said, "If you want to say that this shaved ice is still better than that popsicle." ”

"So, our family will mainly make shaved ice in the future, as for this shaved ice method, it is nothing more than adding sugar water to the mashed ice cubes, and the more advanced point is to add chopped fruits, or add milk and goat's milk and the like, in short, there can be many kinds of tricks, it depends on the wisdom of the mother." Wu Qing seemed to be in an infinite reverie, wondering if he could really make a business of shaved ice, would he be able to open many chain stores. If you open a chain store, you have to steal something new.

For her son's whimsy, Aunt Wu has been very adaptable. No longer look at it like a weirdo like it used to.

What Wu Qing didn't know was that he was already famous in Wenshui County.