With the idea of experimenting with making zuò soap, Xu Liang simply asked Wang Zhixian for another three days off.

Feng Suqin arrived at Xu's Mansion early in the morning. She walked through the verandah into the kitchen on the left, only to see Xu Liang rolling up his sleeves and already busy working.

In the kitchen, three wooden buckets were filled with black and muddy things, and Chun'er and Xia'er were holding a wooden stick and stirring vigorously against the bucket.

"Xu Liang, what are you doing here?" Feng Suqin asked curiously.

When Xu Liang saw that it was her, he honestly and unceremoniously handed over a wooden stick and said, "You came just in time, quickly, stir the bucket behind me well." ”

Feng Suqin took the wooden stick and stirred it in the last bucket according to his words. She looked at it carefully and said, "This is?" Stove ash, right? What's the use of us stirring this up? ”

"Exactly!" Xu Liang took the note on the table on the side and looked at it, and explained to the three curious women: "Don't underestimate this stove ash, it contains a high content of potassium salt, and now stir it to dissolve all the potassium salt inside." Hey, Xia'er, you haven't eaten in the morning, hurry up! ”

Xia Er complained bitterly: "Young master, I've been stirring for almost half an hour, and my hands are sore." ”

Another girl, Huan Chun'er, also shouted: "Yes, young master, if you don't stop, you will do it again." ”

Xu Liang laughed, stepped forward to take a look, waved his hand and said, "Okay, you two buckets are okay, quickly, pour them into the basin blocked with a cloth over there, be careful, don't pour all the mud underneath into it." ”

When the two maids heard this, they were overjoyed, and poured two buckets of gray water into the basin where the filter cloth had been placed a long time ago.

After a while, the basin with the grey water was full, and a layer of mud remained on the filter cloth covering the basin. Xu Liang stepped forward to remove the filter cloth, and filtered it three or four times, until the gray water could not see the obvious mortar, and the entire gray water showed a uniform gray-white color, and then nodded with satisfaction.

At this time, the bucket that Feng Suqin stirred was already ready, and under Xu Liang's guidance, Feng Suqin personally filtered it four times, and finally met Xu Liang's requirements.

These are all done, and all that remains is to wait for the iron head to buy the lime powder. Xu Liang saw that the three women were exhausted and panting, and said with a smile: "Okay, seeing that you are all tired, find a place to sit down." ”

Chun'er Xia'er cheered, grinned and ran out.

Feng Suqin took the note, and saw that it was full of words, words such as dissolution, filtration, precipitation, saponification, and a string of characters that he had never seen, and asked curiously: "Xu Liang, what is this?" ”

Xu Liang smiled smugly, took her shoulders and sat down on the stool, pointed to the characters on the paper and said, "This is the exclusive secret of Young Master Ben, with it, we may be able to make soap." ”

"Is this soap really as good as you say?"

"Of course, when did I lie to you?"

"But, what's written on it, why can't I understand it at all?" Feng Suqin is like a studious student, who asks if she doesn't understand.

"Hehe, it's weird if you can understand this thing, come, rub Young Master Ben's shoulders, Young Master Ben will teach you a lesson today." Xu Liang said with a smile.

"Virtue!" Feng Suqin scolded with a smile, looked outside the door, and saw that Chun'er and Xia'er would come in for a while, so she slapped Xu Liang's shoulders.

"Oh...... Comfortable! Xu Liang snorted with satisfaction, and in Feng Suqin's dissatisfied eyes, he began to explain carefully.

After finishing the whole paper, Xu Liang grabbed the cup and poured a large mouthful of cold water, and asked Feng Suqin, "Do you understand?" ”

"Well, I probably understand, but I haven't figured out some things, how do you say that water and oil make soap?" Feng Suqin dragged her pointed chin with one hand and said puzzledly.

"Ahem, you'll find out in a moment." It was really embarrassing for Xu Liang to use the knowledge he learned in later generations to talk to this woman in the Ming Dynasty about chemical reactions. It was Xu Liang who shook his hand very irresponsibly and said.

Finally, the iron head came back with a bag of lime.

The preparations were ready, Xu Liang commanded his three women and one man, according to the established steps, first add lime water, just like filtering gray water, filtered out two buckets of clear lime water, and then added lime water to the gray water spoonful by spoonful, in the surprised eyes of the four people, after the gray water was added to the lime water, there was actually a white precipitation.

Xu Liang watched carefully, recorded the amount of lime water on the paper while watching, and after the precipitation no longer appeared, it was filtered and filtered, and finally two buckets of clear liquid were obtained.

Just when Feng Suqin thought that Xu Liang should add vegetable oil to it next, Xu Liang asked Chun'er to light a fire on the stove and pour a bucket of clear liquid into a freshly washed pot.

"Xu Liang, why do you still have to make a fire?" Feng Suqin asked.

"Well," Xu Liang said, gesturing, "The fire is for heating, and when the temperature is high, the reaction will be much faster." ”

When the liquid in the pot boiled, Xu Liang asked Tietou to stir while adding vegetable oil to the pot. Xu Liang remembered the increase in vegetable oil on the side.

The crowd looked nervously inside the pot, expecting the legendary soap to appear. However, as the iron head added more and more oil to the pot, the oil and water in the pot were mixed, but there was no yellow solid soap as Xu Liang said. Feng Suqin and the two maids both looked at Xu Liang with inquiring eyes.

However, Xu Liang didn't say a word, staring at the pot tightly.

"Stop!" Finally, Xu Liang shouted. Tietou stopped adding vegetable oil and wiped his sweat.

Soap out? The three anxious women all looked into the pot. However, the pot was only a pot of milky liquid, and there was not even a shadow of soap in sight.

"Xu Liang, did you fail?" Feng Suqin couldn't help but say.

"Hey, hey! I Xu Liang shot, how could I fail. Look at it, this young master is going to change spells! Xu Liang said confidently. He picked up the spoon, scooped a spoonful of salt and poured it into the pot.

The crowd stared at the pot, but nothing appeared.

Xu Liang poured another spoonful.

Still nothing happens.

Am I mistaken? Xu Liang was also anxious at this time, and poured three spoonfuls of salt into it one after another. Finally, Xu Liang breathed a sigh of relief.

It's done!

Under the shocked gaze of Feng Suqin and others, the upper layer of the liquid in the pot began to precipitate a yellow, soft solid. Xu Liang scooped out a layer with a spoon, and then poured salt into the pot.

It wasn't until there was no longer that kind of solid in the pot that Xu Liang breathed a sigh of relief, put the soap into the bucket, and weighed it again.

"Is this soap?" Feng Suqin pinched the ball in her hand and asked.

"Hmm." Xu Liang also pinched it in his hand, nodded and said, "Now like this, it can be regarded as soap." Take it and wash your hands. ”

Everyone listened to it and went to test it excitedly, and sure enough, although this yellow thing was ugly, it was smooth and slippery when it was put on the hands and washed with it, and the effect was obvious after washing. When everyone came back from the experiment, their faces were excited.

"Young master, this soap really works." Chun'er's face turned red with excitement.

"yes, yes." Xia Er stretched out two washed white hands in front of Xu Liang, "Young master, look, is the slave's hand much whiter than just now?" ”

Xu Liang rolled his eyes and said angrily: "How do I know? Who is going to pay attention to whether your hands are white or not? ”

"Xu Liang, what should I do next?"

Feng Suqin actually wanted to stretch out her hand for Xu Liang to witness, but Xia Er was in front, so she was embarrassed, so she changed the topic and asked.

"Well," Xu Liang asked Tietou, "I asked you to find a box for making tofu, have you found it?" ”

"Young master, I've already done it!" The Iron Head replied loudly.

The last step of Xu Liang's soap making zuò, the compression baking begins.

However, the unexpected arose. Xu Liang counted the time, opened the baked soap and came out, put it in his hand and pinched it, but it did not have the feeling of hard molding in later generations, and the soft cotton was almost like a tofu block. Xu Liang thought that the baking time was not enough, so he roasted for another hour, but when he took it out again, the tofu cubes were still tofu cubes.

Xu Liang was stunned, standing there thinking about it, but he couldn't figure out what was wrong. When I tried the second bucket of grey water, the soap was still soft.

It's really a dou who can't be helped! Xu Liang scolded.

"Young Master, is this the formed soap?" The iron head took a piece in his hand, and with a slight squeeze of it, two finger prints fell into the soap block.

"Uh," Xu Liang smiled bitterly, "Well, it's still a little different from the soap I know, and it's a little inappropriate to call it soap." ”

"I think that's fine, it's not called soap, or it's soap, right?" Feng Suqin looked at the row of soap bars on the table and said.

"Soap?" Xu Liang listened to the black lines all over his head, and then looked at the rows of crooked soap blocks on the table, and nodded helplessly, "Soap paste is soap cream......

After the three buckets of gray water were processed, Xu Liang counted the pile of soap paste on the table, and there were more than a hundred pieces. Xu Liang pulled the iron head and ordered: "Ah Tie, you go to the street, find those people who carve seals, carve four chapters, and then buy some blank paper and ink back." ”

"Good young master." The iron head replied, "Uh, what's engraved on the chapter?" ”

Xu Liang thought for a while and said: "Well, choose the larger one for the two pieces, and the words "Liang Ji soap cream" will be engraved on them, and the other two pieces will be engraved on the smaller one, and the words "September of the sixth year of the Apocalypse" will be engraved on them." ”

When Tietou went out, Xu Liang beckoned to the remaining three women in the house and said, "You cut the more than 100 pieces of soap paste in half, it's too big." After a while, after the iron head buys back the seal and paper, you wrap the cut soap paste in a cardboard box, with a large seal on the top and a small seal on the bottom. Hehe, after printing, our Liang Ji soap paste can be sold to the outside world. ”

"Huh?" The three women looked at each other, and Feng Suqin hesitated: "You still want to sell this soap paste outside?" Will anyone either? ”

What words this is? Xu Liang was stunned when he heard this: "How can no one want such a good thing?" ”

"Young master, how much can our soap paste be sold for?" Chun'er asked with a grin.

"Hehe, Young Master Ben has thought it all out." Xu Liang said with a smile: "Let's Liang Ji soap cream, five cents a piece, the national uniform price, Tong Su is not bullied!" ”

"Ah, it's so expensive." Chun'er was overjoyed and said: "Then there are more than 200 of them cut in half on the table, why don't we sell them for thousands of dollars, then, that's one or two silver." ”

Xu Liang knocked over with a shudder, looked at Chun'er who was covering his head and scolded with a smile: "The little money fan who lost his eyes on money, the account is calculated very quickly." He said faintly: "Today's two hundred yuan, we don't want a penny, all of them are given away for nothing." ”

"Ah, why?" The three women exclaimed.

"Alas," Xu Liang squinted and said, "Open up the market!" You don't understand! As soon as the words came out, Xu Liang couldn't help but think of Huang Ziren, the fallen brother who was assigned to Liaodong, and secretly said that it would be good if this kid was by his side.

Master, it's also lonely! Xu Liang thought with a chill.