"Tap..."

A few minutes later……

Catherine came back with the things and handed them to Liu Feng, "Are these things enough?"

"Enough." After Liu Feng took it, he started to carve the pattern with the carving knife.

"Liu Feng, what is this for?" Lucy asked curiously.

"Make a mold for soap." Liu Feng didn't move slowly, and responded, "You can also make a mold that you like, and the soap can be used after it is made."

"Huh? I can have this." Lucy and Catherine's eyes lit up, and they immediately started to work on it.

"Crack clap..."

After half an hour.

"Mina, don't stir, let him settle." Liu Feng said to Mina.

"Okay." Mina breathed a sigh of relief and shook her sore arm.

"Crack clap..."

Another half an hour passed, Liu Feng put down the mold in his hand, turned his head to look at the girls who were sculpting with their heads lowered, and couldn't help grinning.

"It should have settled down." Liu Feng turned his head to look at the ceramic jar containing the plant ash water, and he could clearly see the two layers of plant ash water, the upper layer had clean plant ash water, and the lower layer had precipitated plant ash slag.

"Master, do you still want to stir?" Tis asked curiously, her purple eyes had the desire to do it.

"I'll let you do it later." Liu Feng shook his head lightly, and used another ceramic jar to get the clean ash out of the plants.

"Oh." Tis's mold was just a circular groove, and no pattern was useful, so she had time to stare at Liu Feng.

"Now use the soil method to test the alkali content." Liu Feng took an egg and gently put it into the jar of plant ash water.

In the end, it was found that the eggs floated in the water, but did not sink to the bottom, nor did they float on the top, which means that the alkali content in the ash water of plants and trees is still acceptable.

"Huh? This is amazing." Tiss said in surprise.

"That's the charm of chemistry." Liu Feng replied casually, and then poured clean lard into the grass and ash water.

In the hot weather in summer, the lard does not solidify at all. If it is in winter, the lard needs to be heated and melted.

"Chemistry?" Tiss was a little confused, what is this?

"Come on, stir at high speed." Liu Feng handed the ceramic jar to the horn.

"Okay." Tiss took it and stirred it up quickly.

"Add some fragrant pollen." Liu Feng poured the freshly crushed petal powder into the ceramic jar.

"It's... a little sticky..." Mina pointed her head and shouted.

ten minutes later.

"Okay, Tis, stop." Liu Feng estimated that the materials could be fully integrated.

"Phew..." Tiss breathed a sigh of relief, breathing a little too quickly.

"Come on, bring all the molds." Liu Feng took the ceramic jar, picked up the spoon on the side, scooped out the viscous liquid from the ceramic jar, and poured it into the prepared mold on the side.

"¨.Okay." The women immediately pushed the odd-shaped mold over.

This can of semi-finished soap just filled everyone's molds.

"Okay, it can be used after it solidifies." Liu Feng put down the spoon in his hand and chuckled.

"Master, is this all right?" En Li's brown eyes were filled with astonishment. The making of this soap was much simpler than she imagined.

But the material for making the soap was something I could never have imagined. It turned out to be lard, plant ash, water, and pollen.

"This..." Lucy was stunned.

Now that everyone has reacted, this soap will do just that.

"Isn't that mysterious..." Catherine complained, thinking that something as high-end as soap must be made of precious materials.

But...it's all simple stuff.

Nicole carefully picked up a mold and put it in front of her nose to smell it. Suddenly, a faint floral fragrance came out. It didn't have the unique smell of wild boar oil at all, but it smelled very good.

"It turns out that soap is made like this, it's amazing." Mina exclaimed, and there was a look of surprise in her blue eyes.

"Master, what's the point of this? Is it magic?" En Li couldn't understand, how could this lard and plant ash be turned into soap?

"Soap, the main ingredients are alkali and oil, among the ash..." Liu Feng briefly talked about the composition and principle of soap. Just by looking at the dazed and dazed expression on everyone's face after hearing it, I knew that I had said it in vain.

Of course, the soaps that the earth uses now are mostly replaced by chemical compounds.

"In a few hours, see if the soap can be successful. If you can, you can follow this method in the future." Liu Feng said softly.

He was thinking that if there is a lot of oil, he can open a soap shop, mainly because the raw materials are limited, especially the alkali.

The alkali content obtained by the native method is still a little less, and the cleaning effect is definitely worse than that of the soap on the other side of the earth.

. . . . . . . . . . . . .

"One update, ( ̄▽ ̄). It took a lot of time to check the information, please ask for support."

. . .

Chapter 836 Mid-Autumn Festival? ?

After Liu Feng finished making the soap, he went back to the study. The cat-ear lady followed behind, holding the mold she had carved in her hand. Looking at the shape, it looked a bit like a kitten that was crooked.

Wei Ya put her soap mold away and left. She has to go back to class, and the reading competition is about to start tomorrow, so she has to go back and make some preparations.

Now the stage is set up on the school's playground, and the poems and words to be recited are all prepared by the students themselves. Wei Ya just taught them how to recite and what intonation should be used for adjectives. Let the students practice these days.

Tis also left, she just came back to eat, and now that she was full, it was time to go back and continue the inspection.

Nicole took a book and carefully wrote the soap making process, and planned to try to make some different soap varieties by herself after the soap was formed tomorrow.

"By the way, you can add a little pearl powder to it, so you can maintain your skin, but the cost will increase, but it can be supplied to those nobles and businessmen..." Nicole muttered to herself, thinking about Liu Feng's operation just now continued to write.

Princess Lucy went back to her room. She just suddenly got inspiration and was about to start writing the second book in the "City of Wonders 890" series. She decided to write the soap in it. Of course, the production process will not be described.

As for Frey, she still went back to the air force base to practice, and stopped by to wait for her elder sister. Although she knew that at the speed of Leia and others, she had not yet reached the valley, but even so, she would have to wait. .

This time, Leia was going to kill the dragon. Even with the military crossbow and anesthesia given by Liu Feng, she would still be more or less worried.

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