I do research in ancient times

I had a good night's sleep, and when I woke up the next day, the sun was already high.

Mr. Xie has already sent someone to prepare the water for him to wash, and put a breakfast outside the door, warming it with a basin.

Very well taken care of.

While brushing his teeth with a willow branch dipped in salt water, Ning Fei complained silently.

Although it is a world without running water, flush toilets and rice cookers, life is not inconvenient as long as someone takes care of you.

It's no wonder that the Gao surname family insists on technology. This kind of technical defect that can be made up by people, the nobles of the family can't feel it at all!

There is no motivation without demand, this is the maxim of their laboratory!

But he's motivated now.

Ning Fei remained expressionless, and pulled out a split willow branch from his mouth.

He is not very proficient in using this thing, and his gums are often swollen and painful due to grinding, so it is better to change it early.

After breakfast, Ning Juzi was going to visit the small fire room first.

The saponification wastewater that had been left standing overnight should have begun to separate, and the top layer remained in a liquid state, which was the glycerin he needed.

Although it is called oil, it is actually an alcohol, which can be used as a humectant in toothpaste.

He also needs some fragrance, which can be replaced by peppermint.However, because I have never made toothpaste before, the specific ratio still needs to be explored, so it is better to prepare more materials just in case.

He walked out while thinking, not noticing how many people were waiting at the door.

"scare!"

Ning Fei was startled, and almost bumped into someone.

Liu Tie, Yuxin, and Clay are arranged neatly from big to small.

Ning Juzi was a little angry.

"You guys, what are you doing here so early in the morning!"

He looked at Clay first.

"Didn't I tell you to go to the carpentry class to follow Mr. Xie? Why are you here again?!"

The child was the first to be sprayed and felt very wronged.

"Mr. Xie said that he will be busy nailing the sheep pen and renovating the catering room recently. Let me help you first."

"Your face wash and breakfast this morning are all delivered by me!"

Oh, now that I think about it, there is such a thing.

Brother Muye sent a flock of sheep over yesterday, and Mr. Xie discussed with him about raising them in enclosures, so he entrusted the matter with full authority.

"What about you two?"

Ning Fei looked at Liu Tie and Yu Xin again.

"Brother Liu, don't you need to burn stones today?"

"hey-hey."

Liu Tie scratched his head.

"I'm already a member of Juzi, so naturally I have to focus on Juzi's affairs."

"Look, Juzi, this is the stone you asked my senior brother to bake dry yesterday. I have ground it for you and put it away. I will carry it to the small fire room with you later!"

Yo hey, what's the matter today, has the sun come out from the west? ?

Ning Fei looked at him warily.

"Do you have any other thoughts? Why are you so attentive all of a sudden?"

"I don't think so."

Liu Tie was still a little embarrassed.

"My old man beat me up last night and scolded me for not being good enough to be shameless. It's my fault to be able to work for Juzi. I used to always think about the blacksmith workshop, but it was wrong."

Hearing what he said, Ning Fei's face softened slightly.

"

It's not wrong, if you want to go back, I'll go and say hello to Mu Donglai and let you go back to the blacksmith workshop. "

"No no no!"

Now Liu Tie was in a hurry.

"I'm not going back to the blacksmith workshop, Juzi, don't drive me away, I really know I was wrong this time!"

He thought for a long time, not knowing how to express his feelings, so he simply knelt down on his knees and kowtowed Ning Fei three times.

"Jizi, I have a stupid mouth, please forgive me this time, I will definitely work hard in the future, and I will never eat inside and outside again!"

puff--

Ning Fei was amused by his last word.

Knowing that this is a straightforward person, he is not really angry with him.

It's just that this change was a little sudden. He was still thinking about killing the chicken to scare the monkey last night, but he didn't expect the chicken to change its mind and crow with peace of mind.

"how about you?"

Ning Fei looked at Yu Xin again.

"Don't you need to follow your grandfather to the kang?"

Yuxin shook his head.

"I'm still young, my grandpa said that if I go, it will only add to the chaos, it would be nice if I can draw well!"

"Brother Xiaofei, can I go to your little fire room today? I still want to see that blowing thing yesterday, it's so amazing, I dreamed of that all last night!"

Yu Xin's eyes were shining, and she looked at Ning Fei beseechingly, like a puppy eager to gnaw a bone.

Ning Fei thought about it and felt that today's content was not dangerous, so she nodded.

"Okay, but you have to be obedient, and those who are not allowed to touch must not touch, understand?"

"Know it!"

Yu Xin nodded obediently in agreement.

So, when the two arrived at Xiaohuofang again, Ning Fei was still followed by a group of people.

He quickly collected the glycerin, Ning Fei's original toothpaste has already prepared the basic materials, and the rest is to test the ratio.

Hehe, it just so happens that there are a lot of people here today.

"Okay, let's divide the work first."

He took out the wild boar hair that had been divided before.

"Who is handy? First make a toothbrush? Just make four. You can choose soft or hard. Let's try brushing our teeth later."

When he said this, the three of them were a little dazed.

Never heard of a toothbrush, is it a brush for brushing your teeth?

"Yes, it's a brush, but it fits in your mouth, so it's not too big."

Ning Fei compared the size.

"It's about this big, with a long handle and pig hair on it."

So the three of them started to fight, and Yu Xin was indeed Mo Zong's most promising disciple. She understood the general idea based on Ning Fei's description alone, and she did something well.

Liu Tie and Clay were more miserable.Especially Clay, he had never seen what a brush looked like since he was a child, and after tossing for a long time, he only got a pig hair wrapped around it, and his face was flushed with anxiety.

Yu Xin shared his work with him, and the child mumbled for a long time before saying "thank you" dryly.

Ning Fei clapped her hands.

"Okay, now I have toothbrushes. I'll tell you the toothpaste with different formulas later. You put the toothpaste on the toothbrush and brush your teeth, then rinse your mouth with water, and tell me how you feel after rinsing."

He demonstrated the correct way of brushing his teeth, and then he used his imagination boldly and began to experiment with the ratio of various materials.

In order to satisfy the hobbies of different groups of people, Ning Fei not only prepares mint juice, but also spares wild celery and wild coriander.

The water content of the latter two is larger than that of mint grass, which makes it easier to extract juice.

As for the taste... Anyway, there are three little white mice!

"The first option."

Ning Fei marked a 1 on the birch bark with a charcoal pen, then looked up at the three people who were brushing their teeth.

The three-person group of mice now had a wooden barrel in front of each of them, and the barrel was now empty, but Ning Fei predicted that the barrel would be filled with mouthwash soon.

"How are you feeling?"

"Well, it's okay, but it's a little cold, and there's a cool breeze in your mouth."

No. [-] Yuxin, the little white mouse, spit out the mouthwash, "But there seems to be some powder left in the mouth, it's sticky."

"it is good."

Ning Fei nodded.

"No. 1 failed, reason: Too much abrasive added."

He looked at the bucket in front of Liu Tie with his eyes, and added another sentence on the birch bark.

"But the detergency is good."

Liu Tie was a little embarrassed.

The three of them brushed their teeth, using the same toothpaste, but he came out with as much dirt as he could, and the wild vegetables we ate last night were still floating in the barrel.

"Be serious, both of you!"

The dark-faced young man babbled to the two children.

"Remember the movements that Juzi demonstrated just now. The front, rear, left, and right exceptions must be cleaned. This is a real...experiment. Don't fool Juzi!"

Clay rolled his eyes at him as he brushed his teeth.

Say who is not serious! ?

He saw it just now, Liu Tie only brushed the back of his teeth earnestly, and just passed by the front!

But brushing your teeth is really comfortable.Although there will be some toothpaste stuck in the mouth, it can be removed by rinsing vigorously, which is much more refreshing than using willow branches before!

"The second plan, reduce the amount of calcium carbonate, increase glycerin and mint..."

With the charcoal brush in Ning Fei's hand, he quickly drew up the formula.

"Try again this time."

"It's cool and slippery, and it feels clean after rinsing with water once! And there's no foam sticking to the teeth!"

Yu Xin's eyes lit up, and he rinsed his mouth vigorously again.

"Yeah, it's all clean! It's as if the teeth have been touched by the wind, and they are so cool that they are about to float!"

Clay also expressed satisfaction with recipe number two.

Ning Fei nodded and ticked number two.

"That's considered successful, our toothpaste."

"Huh? Is this a success?"

Liu Tie scratched his head and pointed to the other two pots.

"I don't like this chilly taste very much. My mouth seems to be leaking. Why don't you two try it?"

Ning Fei glanced at the wild celery juice and wild coriander juice.

Sure enough, everyone has different hobbies.Although mint is a generally acceptable flavor in modern society, other toothpaste flavors are emerging in an endless stream, and there are everything you like.

"Okay, let's try."

He still equipped according to the second plan, but replaced the mint liquid inside with wild celery.

"How about it?"

"pretty good."

Liu Tie nodded.

"Isn't this the potato dumpling made two days ago?"

"I think this taste is better than cool wind grass, and it smells good when you are hungry."

Yuxin and Clay also said that the taste is good, so Ning Fei marked the taste next to recipe 2.

"The last one..."

The young Mokoko looked at the earthen pot containing coriander juice.

Wild coriander is not as strong as modern ones, but it is coriander after all.

Some people don't like this taste naturally, just like some people don't like chrysanthemum chrysanthemum, because they don't accept it physiologically.

Anyway, I have done it, so try it.

So No. [-] wild coriander toothpaste was released.

"Jizi, is this really toothpaste? Can you not spit it out, I want to swallow it."

Liu Tie's eyes seemed to glow with golden light!

He felt that the willow branches, cool grass and wild celery he used before were all scum, and this coriander was his life!

Woohoo, he couldn't bear to rinse his mouth with water!

It's decided, when it's over, he will ask Jizi to give him some oil, or he can go to grind stones and hang bitter noodle trees on it and burn it himself. It just so happens that the white stones he blown last night are not yet used, so he will use this wild coriander To make toothpaste, put more coriander and less ash, and use it for his old man!

Hahahaha, with this thing, his grandfather no longer has to worry about his mouth stinking anymore, he just wants to make it smell good, and he breathes first when talking to anyone, and see who still thinks he doesn't brush his teeth!