After the tragic death of his daughter, the honest father of the age awakened

The principle of soap is very simple. It is a chemical reaction between lye and oil to form sodium higher fatty acid, which is then processed and formed into the original soap.

In the supply and marketing cooperative, a piece of soap costs [-] cents. People in the countryside are reluctant to buy it. They usually soak their clothes in soapy water and then beat them with a mallet. If the clothes are not stained with soil, they don’t even use the soapy water. Just rub it by the river.

There is no way around it. Although beating with a mallet can make the clothes cleaner, it will make the clothes break faster. Where can I beat them frequently?

Thinking of saponins, Xu Shuxin asked her second sister to find the dried saponins at home.

I don’t know how alkaline these plant ash are, and whether it can be made into it. Xu Shuxin thought it would be good to try it with saponin.

"Saponia? That's for washing clothes. It's gone after you use it." Xu Shuyu said.

There are not many saponaria trees in their brigade, only two in total.

If anyone in the brigade wants saponins, they have to grab them. If they don't keep an eye on them, they won't be able to grab them.

When the saponins were ripe this year, Xu Shuxin relied on her dexterity to climb up the tree and grab a bunch of them. After drying them, she put them in a bag. When she needed them, she took some out, crushed them, and soaked them in water.

Although she said that, Xu Shuyu did not stop walking back to the house. However, after taking just two steps, Xu Shuyu suddenly stopped, looked back at Xu Shuxin who was stirring the basin with her hands, and asked her, "Xinxin, what are you doing now?" Is it made for laundry use? Is it soap?"

"Soap? Can you make soap with just these?" Xu Shuyan asked, looking at the dusty liquid in the basin in disbelief.

Xu Shuting and others also stared at the liquid in the basin.

Xu Shuxin: "Second sister, why are you so smart? You've already guessed it all!"

She also thought that her sisters would know what it was by the time it was formed, but she didn't expect that the second sister had guessed it just at the beginning.

Xu Shuyan looked at Xu Shuyu, "Second sister, how did you guess that Xinxin wanted to make soap?"

After hearing what the sisters said, Xu Qingmu also came over, looked at Xu Shuxin's movements, and asked him, "Xinxin, can these really make soap? I don't think the soap from the supply and marketing cooperative is this color?" "

"This is a simple handmade soap. The color is definitely different from the one sold by the supply and marketing cooperative, but the principle is the same. Now I will give it a try. If it works, we will improve it and make it a nice color."

Xu Shuyu also answered Xu Shuyan and expressed her conjecture, "I am not thinking that plant ash can wash clothes, and soap locust can also wash clothes. Since Xinxin uses these to make things, it must be related to these. No matter how bold it is, Guess, isn't soap the only thing that can wash clothes?"

Xu Shuyan: "Second sister, you are so smart!"

"Yes, second sister, you are so smart!" Xu Shuting and others also praised Xu Shuyu.

Xu Shuyu waved her hand, "How can I be smart? Xinxin is smart. She can even make soap."

Xu Shuxin continued to stir in the basin without raising her head, and said, "It's written in a book. It's in the high school chemistry book. I also heard it from others. I don't remember who it was."

At this time, Xu Qingmu and Xu Shuyan had already come to help.

Xu Qingmu said: "Do you want to keep stirring like this? Xinxin, go and wash your hands. Dad can do this. The same goes for Yanyan, so don't do it."

Xu Shuxin took her hand out of the basin and said, "That's hard work, Dad."

Xu Shuyan continued, "Dad, I'll help too."

"Second sister, please go inside and get the soap locust." Xu Shuting urged Xu Shuyu, and then asked Xu Shuxin, "Xinxin, will that person also tell the party secretary about this method?" She looked worried.

If others do the same, wouldn't they miss this opportunity?
Xu Shuxin was not worried at all, "It's okay. Even if this is robbed, I have other ways, and we can also make it for our own use, and we can save a lot of money."

Xu Qingmu and Xu Shuxin said the same, "Yeah, don't worry too much if it doesn't happen. If this method doesn't work, let's think of other methods."

After a while, Xu Shuxin felt that the plant ash had been stirred thoroughly, so she asked Xu Qingmu to stop, "Dad, it's okay. Just leave it like this overnight and wait until tomorrow to use it. Now let's make saponin."

Xu Shuxin didn't need to do anything next. She dictated, and Xu Qingmu followed her step by step. First, he crushed the saponins into fine powder, then fried them in a pot, then put them in a clay pot and put them on top. Vegetable oil, which is peanut oil, and then that's the end of it for now.

Looking at the peanut oil in the clay pot, Xu Qingmu clicked his tongue. No wonder the soap from the supply and marketing cooperative was so expensive. It was actually made of oil.

The little girl also said that even those plant ash water also needs oil.

If this fails, those oils...

Forget it, let the child play if she wants to. Even if it doesn't work, it doesn't matter.

That night, Cui Lanhua also made meat sauce, which was made from pork and mushrooms.

Because Ji Jing'an doesn't like spicy food very much, she didn't add chili pepper.

The next morning, Xu Shuxin did not deal with the lye soaked in the plant ashes after getting up. After breakfast, she and her sisters set out for the city.

Xu Qingmu and the seven sisters left together. When they separated from the commune, Xu Qingmu asked them, "Do you really not need dad to go with you?"

As the representative of the sisters, Xu Shuyue replied to Xu Qingmu, "No, dad, there are so many of us, we can't lose it."

Xu Qingmu had no choice but to agree, "Okay, then please pay attention to safety, and none of you can ride a bicycle. If it doesn't work, don't buy it yet. Wait until dad has a rest before buying it."

The city is so far away, even if you know how to ride, it would take a long time to get back by bicycle, and one bicycle can't fit seven sisters.

Xu Shuxin: "Don't worry, Dad, we will see what happens. Maybe we are lucky and they can be sold in the county. Then we can buy it in the county and put it at Uncle Tang's place, waiting for us from the city." Bring it back when you come back.”

Anyway, I have to buy a bicycle today. If the county and city don’t have it, then let’s talk about it.

Although the city is far away, there is always a way to get back by bike.

Under Xu Qingmu's repeated instructions, Sister Xu Shuxin got on the bus to the county seat.

After half an hour of bumpy driving, they arrived at the county seat.

After getting off the car, Xu Shuxin saw that it was still early, so she proposed to go to the supply and marketing cooperative in the county to see if there were any bicycles. If so, she could buy them in the county.

Needless to say, Xu Shuxin was really lucky. When the sisters went there, the staff just happened to put the bicycles out.

Not many, just two.