Travel to ancient times and become rich women with your bestie

After eating the cold noodles, it was already around two or three in the afternoon. Agui estimated that the vegetables would soon be delivered, so Zheng Yuan and Duan Minmin decided not to follow the children to the fields.

They promised Mr. Jiang to give them a better toothpaste formula within five days, but now they have nothing in their hands and there are still many things to consider. In addition, their conversation with Mr. Jiang this morning only stayed at the stage of proposing preliminary ideas, and the decision-making power is still in the hands of Mr. Jiang. Their idea is that if they don't do it, then don't do it. Since they have decided to do this business, they must do their best to do it well.

At least by the time Mr. Jiang formally writes a letter to his father tomorrow, they have to come up with a preliminary plan, otherwise why would others cooperate with you in this business.

In modern times, when they graduate from college, the bonus period of the development of the times has passed, and they have failed to become the pigs standing on the vent of the wind. They can only fantasize about the wonderful life after making a lot of money before going to bed every day, but when they wake up the next day, they are still like cattle and horses in the office.

Now that they have come to this time and space, and have a lot of wisdom summed up by their ancestors throughout history, they certainly want to see if they can make a name for themselves. However, the initial conditions can be said to be completely uncompetitive. If they rely solely on their own strength, it is unknown how long it will take for them to fight their way out.

Now that we have an angel investor, we naturally have to seize this opportunity and use the large platform of Jiangji to build our own business first, so that we will have the opportunity to fight for greater rights and interests.

If even the feasibility of the project is denied, then they can give up.

Both of them are science students. Because their high school chemistry teacher was very interesting and kind, they developed a strong interest in chemistry. As a result, when they applied for their majors, one of them chose Chemical Engineering and Technology and the other chose Materials Science and Engineering. They occupied two of the four most unpopular majors.

So after spending four years happily in the lab, the reality of society hit them hard, telling them that the four pitfalls of the major were really well-deserved. After being repeatedly rejected by their favorite companies, they chose to bow to reality and did not continue to study for a master's degree or to continue to look for jobs in their majors. One of them joined a chemical design institute as a draftsman, and the other joined a construction company as a cousin.

Later, whenever they talked about it, they still did not regret studying these two majors, and those days in the laboratory were the happiest times.

I didn't expect that the major I gave up would come into play in this era. Who can say that it is not a return to major in another sense?

Duan Minmin has some impression of the making of this toothpaste. At that time, the tutor she followed also had several graduate students under his supervision. After finishing things related to the project, he would also lead the undergraduates to make some small things.

This is her favorite part. By mixing various materials according to the proportions, she can get some small things that can be used in life, such as ancient shampoo, ancient soap and the like. During college, they saved a lot of living expenses by relying on these small things, so Zheng Yuan often jokingly called her a magician.

But this toothpaste is really not easy to make. Even with such good laboratory conditions at the time, what they made was not very useful, not to mention in this era when there were no raw materials.

The two of them squatted in the kitchen, thinking hard.

"Yuanbao, it's unrealistic to make the kind of factory-produced toothpaste that we used to make. Even if we can only achieve 70% or 80% of it, it will be quite difficult." Duan Minmin thought for a long time and became a little discouraged.

"That's for sure. Don't worry, Amin. We can research a basic one first and then continue researching and developing it. Anyway, this is just the first shot into the market, and the basic one is basically enough. You tell me what materials you need. After all, I'm also a materials major, so maybe I know how to get the raw materials."

"First, the abrasives. It's fine for us to use carbon powder ourselves, but it won't work if we want to sell it. Using refined salt is not feasible either, after all, it's too expensive, which goes against our original intention of making money. The abrasives commonly used in modern toothpaste production are calcium carbonate, aluminum hydroxide and titanium dioxide. The latter two are not very practical, so calcium carbonate is the best choice."

"There are a lot of big clams in the river in our village. I don't see many people picking them up, so I think they should be cheap since no one eats them. We can get some and grind them up for a preliminary test. But after all, they are something that we eat, and they have to be sold and tested by customers. It will take Mr. Jiang's research to put them on the market."

Zheng Yuan nodded: "That's right, don't worry too much about this friction agent, almost all stones contain this ingredient. I remember there is a kind of limestone called chalk, which is relatively soft and has a relatively high calcium carbonate content. We can use it in large quantities later."

"There are also moisturizers. There are many moisturizers, but I've been away from the lab for so long that I only remember the simplest one, which is glycerin. Glycerin is not very difficult. Do you remember the saponification reaction you learned in high school biology class?"

"I remember, he said at that time that he would travel through time and space to make a fortune by making soap... Oh my god, could it be that he traveled through time and space just because of his bad mouth?" Zheng Yuan said this while covering his mouth in fear and whispering.

"What are you thinking about! The whole class was discussing why we were sent here." Duan Minmin tapped Zheng Yuan.

Yes, if one could travel through time with just one mouth, the ancient world would be overcrowded.

"Why didn't we want to make soap and sell it?"

"Come on, if you take this out, you'll probably be dragged into a small dark room, beaten and forced to hand over the formula before you can even sell it. As far as I can remember, there was something called bath beans in that era, and a small one cost one tael of silver. We two have no power and influence, and we're touching someone else's cake. That's like lighting a light in the toilet and looking for shit!"

"That's right. Fortunately, we didn't think about it at that time. Now that we have the support of Jiang's strong company, we can make a lot of good things in the future." Zheng Yuan squinted his eyes and began to fantasize.

"But I don't think lard is very suitable. You remember, the soap we made almost broke our month. I'll remember that smell forever. If we drink this, I'm afraid Jiang's store will be smashed. I remember when we first came here, didn't you have walnuts that they picked up from the mountains at home? Let's make walnut oil. I remember that people at that time didn't like to eat this stuff, so it shouldn't be expensive, and the cost will be greatly reduced."

"Yes, I was just wondering if there was anything I could use as a substitute. The best oil is coconut oil, but it's only available in coastal cities. Your suggestion is very unacceptable." Duan Minmin gave Zheng Yuan a thumbs up.

"Then there are the flavoring agents. Although the taste of walnut oil is relatively more acceptable, it would be even better if there were flavoring agents. I remember that when I was a child, my family used distillation to make wine. We will try to distill peppermint essential oil or other flower essential oils in a few days. If we don't have enough time, we will temporarily launch the basic version and add it when it is produced later, which can also attract a wave of customers."

"There is also the thickener. My idea is to use either peach gum or propolis. These two things are not difficult to make. I will use whichever one is cheaper when the time comes."

Duan Minmin rubbed her head and looked at Zheng Yuan: "Actually, what bothers me the most is preservatives. Without them, our toothpaste will probably go moldy in less than five days. But we definitely can't make common ones like potassium sorbate and sodium benzoate. Yuanbao, think about it, did you learn anything that can be used to replace preservatives when you were in college?"

"Preservatives?" Zheng Yuan frantically searched for related memories in his mind.