"Sanniang, look at it, this is vinegar cloth!"

Lu Qi went around Qianniuwei's temporary camp and came back with a piece of black cloth.

Lu Qi's face was slightly turned to the side, as if she was very disgusted.

Gu Tingcheng was originally a little puzzled, although Lu Qi was not very old, he had been by his side for a year or two.

And her family is a servant of the Gu family, and since she can remember, she has been taught rules by her elders.

In terms of "etiquette", it is no exaggeration to say that Lu Qi is no worse than some ordinary girls from official eunuchs!

Now, what's wrong with this girl?

Is it like this disgusted look?

Until Lu Qi approached, a sour and smelly smell rushed to his face, and Gu Qingcheng almost couldn't control his emotions.

What does it taste like?

Straight to the heavenly spirit cover, it's too sour.

However, this vinegar cloth was brought by herself, whether it was fragrant or smelly, she had to take a closer look.

"Bring it and let me see!"

"Sanniang, this smell-" It's really unpleasant.

Lu Qi is really afraid of smoking her own Sanniang.

"It's okay!" Gu Tingcheng is the most studious, since she has knowledge that she doesn't know, she must know a thing or two.

Lu Qi sent the rag to Gu Qingcheng.

Tsk, the smell is getting more and more pungent.

Gu Qingcheng endured his disgust, approached, and took a closer look.

This is a piece of cloth.

But it must have been impregnated in some kind of seasoning, and it was stained with those flavors.

Gu Tingcheng thought of this, so he ignored the pungent smell and directly picked up the cloth with two fingers.

Reach the tip of your nose, twitch the wings of your nose, and sniff carefully.

Sour!

Salty!

Gu Tingcheng still had some scruples in the end, and did not taste it directly.

However, her six senses are keen, and she still has a rough judgment through taste.

Lu Qi also explained on the side, "The slave asked the Qianniu guard, and he said that this is a common thing in the army."

"Put salt and vinegar in the water, put the sackcloth in it and boil."

"The sackcloth is stained with saltiness and vinegar, and this is vinegar cloth."

"When it's time to march, cut the vinegar cloth into small pieces and boil it in a cauldron, so that the food will have a taste."

Midori said as she resisted the urge to think "yue".

No way, when she explained, she couldn't help but imagine that picture in her head.

Coupled with the pungent smell of vinegar cloth, her stomach can't help but churn.

"Is there such a shortage of salt?"

Gu Tingcheng is not an ordinary family girl, she has been the queen and queen mother in charge of the government.

So, from just a small piece of vinegar cloth, she guessed that the crux of the problem was "salt".

Salt is indeed a good thing, and in this era, it is very rare.

Wait, how is salt made now?

Gu Tingcheng's thinking began to diverge, and he tried to use his "common sense" to change the world.

"Executor, it's been more than a month, and the system has already cooled down."

Disaster Water felt Gu Qingcheng's heart that was about to move, and he couldn't hold back, and jumped out again to remind: "Let's do a task!"

"Do more tasks to earn more points."

"Have you forgotten your long-cherished wish? Don't want to become big, beautiful, and human soon?" ….

As he spoke, he began to bewitch.

Gu Tingcheng: ...... I certainly haven't forgotten my wishes.

However, I don't act too eager, otherwise I'll be in a passive position.

"No hurry! I've got some work to do."

Gu Qingcheng did not continue to think about any new salt-making method.

Instead, based on the Western medicine skills he extracted in the previous task, he thought of ways to improve them.

Eaten

Rice, Gu Qingcheng took two maids and three or five tribes to wander around.

This time, the temporary resting place was selected in a mountainous area next to the official road.

There are mountains and forests, and there are rivers.

Zheng Mo led the Qianniu guards to shoot some wild animals in the forest, which was regarded as adding vegetables to everyone.

Not to be outdone, the rangers caught some fresh food in the river, and were instructed by Gu Tingcheng to make fish soup and grilled fish.

The crowd ate very happily.

Gu Tingcheng took people to wander in the mountains and forests.

Then, she noticed that there were some black-brown rock formations on the mountain near the river.

Gu Qingcheng's heart moved, and she called two parts: "Scrape these rock formations down and put them in wooden barrels."

Although the Gu family's subordinates didn't understand why Gu Qingcheng did this, the little master had orders, and they would only obediently obey.

After a short time, the two tribes followed Gu Tingcheng's instructions, took rock formations, put them in barrels, ground large pieces of rock into powder, and then set up a fire.

Boil the salt, strain it with a fine linen cloth, and then filter it layer by layer with charcoal, etc.

The water in the pot will become clear.

Gu Tingcheng asked the tribe to find a smooth slate, and the noon sun burned the slate hot.

The salt water was poured on the stone slabs with a stabbing sound.

The water is slowly evaporated, leaving behind a layer of shallow, white particles.

Midori and Jiaowei's eyes widened.

Even the two parts that have been helping out are also incredible.

This、Is this salt?

Seeing the reactions of several people, Gu Qingcheng couldn't help but hook the corners of his lips, "You can taste it!"

Hearing this, Lu Qi hurriedly stretched out a finger, dipped it on the fine white particles, and then put it in her mouth.

"Salty!"

It's like the finest sea salt you use at home.

But how expensive sea salt is, even these wealthy slaves are not qualified to enjoy it.

My own Sanniang, just, did it so easily?

Lu Qi and the other servants all showed surprised expressions.

However, they are all servants of the Gu family, and their lives, wealth and glory are closely related to their masters.

To put it simply, it's just a salt-making method, that is, the master wants to rebel, and they can only follow it.

Snitch?

Or is it a leak?

Hehe, what do you want.

The current law stipulates that if the master rebels, the slave and the maid will expose it, and finally they will die with the master's family.

They are the property of the master, and whether they live or die is determined by the lord's house.

When Gu Qingcheng made it, he didn't hide from them, which is what it came from.

After packing up his things, Gu Qingcheng returned to the army with the finished product.

She showed the collected refined salt to Gu Heng.

Gu Heng raised his eyebrows, "You did it?"

He never looked down on his granddaughter because of his age.

Ah Qing of his family, except for his appearance, there is no flaw. ….

His intelligence and heart are more like God's darlings.

And from ancient times to the present, there is no shortage of geniuses, who are almost demonic, born to know, and never forget...... Many prodigies have left their mark on history.

Therefore, no matter how magical his granddaughter behaves, Gu Heng will not doubt it, only happiness and faint regret.

"Hmm! It's rock salt, and as long as it's by the river, it's possible."

"Rock salt is poisonous!" Gu Heng traveled the world in his early years, and his knowledge was naturally not shallow.

He saw poor people who had eaten the rock salt by the river and died of poisoning.

"You can use filtration to remove toxins from rock salt."

Gu Qingcheng said firmly.

Filtration, purification and other skills, but she learned the knowledge of medicine and chemistry in the Republic of China.

Because this has something to do with medicine, when purifying penicillin, relevant knowledge points are also used.

So, the system didn't erase it completely.

Thinking of penicillin, Gu Tingcheng was moved again.

In fact, in ancient times, the ancestors of China also discovered penicillin.

Just didn't continue the research.

"Mustard stew!"

In the last mission world, Gu Tingcheng was a person who lived until 2015.

She also read online articles and learned a lot of "crossing cold knowledge".

All other memories are erased.

But with the knowledge related to medicine in the Republic of China era, Gu Tingcheng has an impression.

For example, this "aged mustard stew".

It is the earliest penicillin in China and has been mentioned by many online authors.

As you can tell from the name, this was originally a pickle.

It is said that in a certain temple, the pickles were left for too long and a layer of mold was grown.

By chance, the monk discovered that smearing the wound with this moldy marinade could stop bleeding and reduce inflammation.

As a result, the temple had a "miracle medicine" that would be given to the sick people around it.

If you have a connection with the temple, even if you are cured, people will associate the credit with the gods and Buddhas.

Then, there was no in-depth study of the old mustard stew, and the opportunity to develop penicillin was missed.

…… Uh, well, these are Gu Tingcheng's own speculations and fabrications when he saw those online articles.

What is the truth of history, and how will future generations know?

However, this story inspired Gu Tingcheng.

"Maybe I can try to refine it, maybe I can make penicillin?"

Chen mustard stew is a real item in history, and Gu Tingcheng made it, which should not be regarded as changing history.

At most, at most, it is hundreds of years in advance, and by the way, it has been purified!

Gu Tingcheng didn't want to get the anti-inflammatory medicine out so early.

But they were exiled to Lingnan this time.

There are many miasma in Lingnan, as well as snakes, insects, rats and ants, and if one is not done well, it will be injured, sick, and even poisoned.

Anti-inflammatory drugs are not a panacea, but they can cure some conditions.

With one more preparation, Gu Tingcheng can also rest assured.

The large army continued to set off, and when Gu Qingcheng was on the way, he would see if there were any aged pickles along the way.

Zheng Mo: ...... This little girl of the Gu family can really toss.

Even the pickle jars of the poor people are not spared.

The days of rushing are monotonous and boring.

Even if Gu Qingcheng found a lot of things for himself, he was still a little bored.

"Executor, since you're bored, let's do a task."

The scourge jumped out in time to brush the sense of existence.

"Okay!"

Gu Tingcheng looked at his little black hand, and then touched his dry and yellow hair.

Alas, it's so ugly, you really need to improve your appearance.

"Then let's do a mission."

Gu Tingcheng lay in the ox cart, retired Lu Qi and other slaves, closed the window, and prepared to "cross".

"Okay! Don't worry, executor, I will give you a good task to do at random."

Under the excitement of the troubled water, there is some nonsense.

Gu Tingcheng's forehead twitched: It was said that it was randomly selected, how to choose a good task?

Not long after, a new synopsis was sent to Gu Qingcheng.

Gu Tingcheng clicked open, and then fell into a state of contemplation-

Ahh

The system determines that it was not intentional?!.

Sarina