(Ask for collections, ask for recommendation votes.) If you find that the recommended votes are not true, you can't do it, please use the recommendation votes to smash me to death. ）

This was the beginning of soap.

Ning Xiu carefully poured in some soda ash and used the salting out method to filter out the soap.

The filtered soapy liquid was translucent, and Ning Xiu carefully fished it out and poured it into a wooden mold.

Although he was already sweating profusely from the heat, Ning Xiu was very pleased.

This method of making soap proves to be feasible.

All that's left to do is wait quietly.

It takes time for the soap to solidify, and after an hour or two, it should be the cured product.

Compared with other chemical products, soap is the most widely sold. Up to the dignitaries, the princes and grandsons, down to the peddlers and pawns, the ordinary people can use it.

In order to distinguish sales, Ning Xiu can add fragrance to the soap in the future, so that he can get an upgraded version of the soap - soap.

It is most suitable to sell soap as a high-end product to high-end officials and nobles, and to sell ordinary soap to businessmen and ordinary people.

Of course, it is not an easy thing to open up sales channels, after all, soap is not like finger cakes, and you can't get an intuitive consumer experience.

More than an hour later, Ning Xiu took Shichiro and Shiro to deduct the soap from the mold.

A whole chunk of soap was pale yellow, with a little dregs on it.

Ning Xiu frowned, such a quality soap could only be regarded as an ordinary product for sale. If you want to sell it to dignitaries, you need to further purify it to make the soap look better.

"Shichiro, get a knife."

"Huh?"

"Third brother, I'm going to cut this soap into small pieces, go quickly."

Since the target population of the first batch of soap was ordinary people, the size of the soap must not be large.

The people in the market are forced to live, and a copper coin is eager to be broken in half. It is impossible to expect them to pay a lot of money for soap.

And the cost is here, the size of the soap is large, the cost will also increase, and the pricing will inevitably increase.

If Ning Xiu wants to sell as much soap as possible, he must make the soap as small as possible.

Shichiro took the knife and handed it to Ning Xiu, who cut it in a size of 10 by 5.

Since the mold is 3 centimeters high, the size of a piece of soap is finally fixed at 10 by 5 by 3.

This size is smaller than the soap of later generations, and it is also a change made by Ning Xiu in order to cater to the habits of the people of the Ming Dynasty.

"Third brother, can you eat this thing?"

I couldn't tell that Shiro was still a little glutton, staring at the pale yellow soap and swallowing his saliva.

"Haha, this thing can't be eaten, it's called soap, and it's used to wash clothes."

"Laundry?"

Shichiro blinked his eyes and asked curiously, "Third brother, can this thing really wash clothes?" ”

Ning Xiu nodded and said, "Yes, now we use soap horns for washing clothes, right?" ”

Shichiro nodded and said, "Anyway, our family uses soap to wash clothes." But I heard that rich and noble families use pancreas. ”

Of course Pancreatic Ning Xiu had heard of it.

This thing is actually similar in essence to soap, which is kind of soil soap.

But because the cost is too high, only the rich and noble can afford it. Ordinary people still use soap horn more.

"That's it. The cost of this soap is much lower than that of pancreas, and the price is naturally advantageous. On top of that, soap cleans better than pancreas, not to mention soap. ”

Shichiro and Shiro both shook their heads and said, "Third brother, don't lie to us. Can this thing work better than pancreas? ”

Ning Xiu's two cousins are also stubborn enough, it seems that if they don't show them it, they won't believe it.

"Well, let's do a test to see who cleans better with pancreas or soap."

After speaking, Ning Xiu took a few dirty clothes, a small piece of pancreas, and sat next to the jujube tree in the courtyard with a wooden basin.

"Third brother, where did you get this pancreas?"

Ning Xiu rolled his eyes and said, "Where else can I get it, your third brother and I bought it from the shop." ”

When Ning Xiu went to Luo'an Fang to buy alkaline noodles and quicklime, he bought a piece of pancreas and came back. In order to compare and verify the cleaning effect of the soap.

As a Ph.D. student in chemical engineering, Ning Xiu is well trained, and comparative experiments are essential.

Otherwise, if the soap is not as clean as the pancreas, and he touts it as a selling point for publicity, it will be bromine.

"You see, third brother, my left hand is pancreas, and my right hand is soap."

Ning Xiu paused and said, "These two basins of dirty clothes have just been changed, and they haven't had time to wash them yet. The third brother and I washed it with pancreas and soap respectively to see which one had a good cleaning effect. ”

"That's a good idea. I'll help the third brother wash this basin. ”

Anyway, being idle is idle, so Shichiro took the initiative to ask for help.

Ning Xiu nodded and handed him the pancreas.

"Wash this basin with pancreas. I wash it with soap. ”

The two rolled up their sleeves and began to wash the laundry.

In less than half an hour, Ning Xiu finished washing a whole basin of clothes.

Looking at Shichiro again, he was still scrubbing himself.

When Qilang finished washing, Ning Xiu glanced at Shiro and said, "Shilang, come and see, which of the two of us has clean clothes?" ”

Juro approached with great interest and looked at Shichiro's laundry.

The oil stain on it has been almost washed away, but traces can still be faintly seen.

He went to look at Ning Xiu's washed clothes again, and found that there was not even a trace of staining, and the clothes were spotlessly washed.

Gee......

"Compared with the two, the third brother is still cleaner."

Shichiro was a little unconvinced, and took the initiative to lean over.

"Is this soap really that good? Even better than pancreas? ”

Some things are afraid of comparison, Qilang looked at Ning Xiu's washed clothes, and only felt that he had washed those that were still stained with oil stars, and he couldn't help blushing.

"Third brother, your clothes are really clean. This soap is simply stunning. ”

"Haha, the third brother didn't lie to you, right? What are you waiting for, cut the rest of the soap to this size and fall up. ”

Ning Xiu wiped his hands with a face towel and said, "It will be officially sold from tomorrow, and it won't be long before the Ning family can accumulate tens of thousands of family assets." ”

If it had been placed in the past, Shichiro and Shiro would never have believed it.

But they had seen the magic of soap with their own eyes, so naturally they would no longer doubt the prospect described by Ning Xiu.

"Third brother, this soap is really good. But I'm afraid many people won't believe it. Is it really sold? ”

Ning Xiu smiled and said, "At the beginning, we set the price low, and we could bundle it. That way, no one will buy it. You have just seen the cleansing effect of this soap. As long as they actually use it, they will definitely race to buy it. Then we can stop bundling. ”

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