Only the men of the village, who were busy with the fields and making cement.

The second phase of the library was opened, and the books in the knowledge library such as cement and road building were available, and the cement could be made by itself.

As for the steel rewarded for the road repair task, Li Zheng hasn't figured out what to use it for?

In the second phase of the library, there is a technology for steel smelting.

But there are no books on the application of technology in the steel industry.

Right now, with a group of children doing experiments.

There is also Doctor Sun on the side who knows that Li Zheng wants to know that those things are not good for the skin and are poisonous, and the formula system library of soap also has it.

In the Tang Dynasty, people were able to use soaphorns when they took a luxurious bath, and ordinary people jumped into the river to wash casually, and the ancients' concept of hygiene was not very good.

They may only take a bath once a month, but at least at their own request, the people in the village are now bathing much more diligently.

On the premise of having a full meal, it is natural to take care of hygiene.

If you can't even eat enough, who cares about bathing.

In the Tang Dynasty, soaphorns were used for bathing, and bath beans were used.

Sun Simiao likes to use pancreas, which are the pancreas in the animal's body.

The decontamination effect is also very good, it is nothing more than that the pancreas of pigs has lard, and lard can be decomposed into a fatty acid.

The use of fatty acids can be used to remove pollution, and after washing the pancreas, add some spices to make it stink.

In this regard, Li Zheng scoffed, preferring to use soaphorn rather than pancreas.

It's too heavy-mouthed.

Bathing with the pig's pancreas, the pig doesn't know what to think when he knows it.

Li Ke walked over and said, "Your Majesty is here, and I watched our training for a while." ”

"Oh." Li Zheng discerned the herbs and did not raise his head in response.

Li Ke: "You don't seem to be surprised at all. ”

Li Zheng: "Then I'm surprised?" ”

Li Ke grimaced expressionlessly, "No need." ”

Li Zheng pointed to a bucket of mutton fat in the distance and said, "You help me bring that one." ”

There are also fatty acids in lanolin, and the reason why soap can remove stains is because of the role of fatty acids.

Li Zheng asked Sun Simiao, "If I add mint and peach blossoms, it shouldn't be against each other." ”

Sun Simiao said: "If you want to add some mint, Poor Dao thinks that your soap is not good." ”

"Why?"

Sun Simiao said: "Peppermint is a thing, the spleen is deficient and yin is deficient, pregnant women can't use it, and if it eats with turtle meat, it will be poisoned." ”

Li Zhengyi patted his head and almost forgot this, pregnant women can't use mint.

Sun Simiao is a walking pharmacopoeia, and the king of medicine, Sun Simiao, is not called in vain.

Li Zheng said: "Then I'll add some peach blossoms." ”

Sun Simiao nodded, "Peach blossoms are good, peach blossoms are sweet, flat in taste, non-toxic, and can dissipate food and qi." ”

These are used to make perfumes.

There are not many peach blossoms in Chang'an, mainly because there are too few peach trees, and this basket is also one of the few peach blossoms.

The fragrance of peach blossoms is very light, but the appearance is good, Chang'an people like peonies in addition to peonies, but also like peach blossoms.

The peach blossoms on the human face are red, and the peach blossoms are still smiling in the spring breeze.

The ancients did not use peach blossoms to make poems.

Pound these peach blossoms into a pink paste.

The main ingredients are plant ash and mutton fat, and a small amount of soap.

The secret ingredient for soap is here.

The paste made of peach blossoms is added to it, and the soap is pink and white, and it looks good.

The first bar of soap was pressed out of the stencil.

After a few days in the shade, it can be used after hardening.

"What is this?" Cheng Chumo took a piece of soap and put it under his nose and sniffed it carefully.

"This is soap." Li Zheng kept busy with his hands, and pieces of mutton fat soap were pressed into shape.

"Can you eat it?" Cheng Chumo asked again.

"I think I can eat it." Li Zheng thought about it and said.

As soon as the words fell, Cheng Chumo took a big bite, and then spit it out again, "Bitter." ”

Seeing Cheng Chumo put down the soap again, he looked at the huge tooth marks on the soap.

Li Zheng said in a cold sweat: "This piece is for you." ”

Cheng Chumo fiddled with the soap in his hand, and asked the children here to find out that this soap was used for bathing.

"Li Zheng, I went back to Chang'an today to see my old goods and heard a news."

"What's the news?" Li Zheng inquired.

Cheng Chumo leaned in and whispered, "Your Majesty doesn't know what's wrong today?" Let the officers and men of the various defense offices step up their drills, and if they win the exercises, they will be paid for the exercises. ”

Li Zheng blinked vigorously.

Cheng Chumo said with a look of surprise: "I thought that your military training method was a little unreasonable, but I didn't expect that you and Your Majesty would think of it together, is it a special accident." ”

Li Zheng smiled coldly, "It's really unexpected." ”

Cheng Chumo also nodded and said, "It seems that your training method is right." ”

"It won't have much effect, though."

"How so?"

"The biggest problem in Chang'an Weifu today is that the good and bad in the army are uneven, and the veterans who have been on the battlefield are not enough, and those recruits are not enough to see, plus there are too many noble children in the army, and they form gangs."

"You seem to have some truth in saying this, and there are many people who spend money to buy themselves into the Wei Mansion, anyway, the army is in charge of food."

Li Zheng said to Cheng Chumo: "So, the biggest problem in the Tang Army today is not the exercise, it is good to want to improve the quality of the soldiers, Your Majesty has seen the surface but has not seen the fundamentals, if you want to improve the military strength of the Tang Dynasty, you still have to start from the roots." ”

"What the hell are you talking about?"

"Management, management is going to change, of course, this involves the military power of the DPRK."

Cheng Chumo's expression was serious, "Li Zheng, you don't want to say this kind of thing to outsiders, you dare to use military power, you don't have enough eight heads." ”

As instructed last year, Dicterson's servants brought a large pile of tea as soon as the season arrived.

Looking at the cart full of tea leaves, Di Zhixun instructed him: "Tear down the mountains behind our Di family, as well as acres of vacant land, and idle houses to plant tea trees." ”

After listening to Di Zhixun's words, the servants of the Di family hurriedly left with the letter in their hands to run errands.

Since drinking tea water with Li Zheng, Di Zhixun has lost interest in those tea soups.

After roasting or stir-frying, it is best to brew the tea leaves.

A cup after a meal to remove greasy and eliminate food.

Although the mouth is a little astringent, the aftertaste after drinking it is really enjoyable.

Di Zhixon somewhat believed Li Zheng's words.

Tea may really be a fortune.

Since drinking tea like this, Di Zhixon has also found that he has the habit of drinking tea.

In particular, it is uncomfortable not to drink a sip after a meal, and it is not refreshing to not drink a sip in the afternoon.

With these tea leaves, Di Zhixun handed them to Li Zheng, "These tea leaves are all freshly picked and have no mold. ”

Holding a bunch of tea leaves, Li Zheng sniffed it carefully, "Why are there so many young buds, it's too early." ”

"But it works." Li Zheng was carrying a bag of tea leaves.

The record of tea has been recorded as early as in Shennong's Materia Medica.

It's just that there are differences in the way of drinking tea.

Some have to be picked to eat, some have to be picked to be used in medicine, and some have to be used to cook soup.

The Central Plains made a lot of use of tea.

：。 ：