After being stranded on a deserted island, they all plotted against me

The bottom layer is made of bamboo as thick as a bowl, and two layers of branch and leaf fences are laid on top as a base.

When people walk up there, they feel a sense of tenacity and strength.

Maybe being isolated from the ground really does have a refreshing effect.

Or maybe it's because the hay stacked in the rabbit house has a strong moisture-absorbing effect.

Anyway, the feeling here is very refreshing.

The roof was very thick, and at first glance no light could get in.

Although it has not been verified by actual rain.

But Zhang Liu was already very confident in the roof's ability to keep out rain.

After walking out of the rabbit house, compared to his own rest, he now wanted to make soap with lard and wood ash as a birthday gift for Xiang Lingying.

However, Zhang Liu also understood that lard was a very scarce resource.

So before making it, he needs to discuss it with the girls.

But as a birthday present and surprise.

Xiang Lingying couldn't know.

And the way to keep it secret from her is very simple.

After all, the girls are now busy making mud bricks in Bamboo House No. 3.

"Sister Wanying, I have something I want to talk to you about."

Walk to the door of bamboo house number three.

Zhang Liu called out to Xiang Wanying, who was carrying a bag of soil dug from the taro field and preparing to enter bamboo house No. 3.

"Hmm? What's going on? Why aren't you resting?"

Place the soil in your hand at the door.

Xiang Wanying looked at her slender palms that were covered with mud.

She hid her dirty hands behind her back somewhat embarrassedly.

At this moment, Xiang Wanying wanted to wash her hands before talking to Zhang Liu.

But facing the other party's somewhat urging eyes, she could only walk over and whispered: "You should go and rest quickly. Qin Ruoyan and the others also said that you must be very tired."

"Forehead……"

I heard Qin Ruoyan and Qin Ruoshuang say that they were very tired.

An embarrassed expression suddenly appeared on Zhang Liu's face.

But then he also pulled Xiang Wanying to the side and whispered: "Well, today is Xiang Lingying's birthday..."

"Today? Birthday?"

There was a hint of confusion in Xiang Wanying's tone.

Then she heard Zhang Liu say the date.

February 6th...

"I actually forgot..."

Eyelids drooped, tone down.

An expression of deep guilt suddenly appeared on the face of the head maid of the Xiang family.

As a maid, she really couldn't forgive herself for such negligence.

Chapter 216: The Daughter Who Doesn’t Want Her Mother to Be Single

"As for birthday gifts, I'm going to make a soap for Xiang Lingying." Zhang Liu saw Xiang Wanying's guilt, but at this moment he wanted to explain his request: "Since lard is required, I need everyone's consent."

After thinking for a while, he added: "In order to keep it a surprise, we have to keep it secret in the early stage, and the soap may not be successful..."

"Understood!"

Xiang Wanying responded briefly and then nodded to indicate that she understood.

After taking several deep breaths.

She has successfully gotten over her guilt.

At this moment, Xiang Wanying has returned to her role as a capable and efficient maid.

Looking at Zhang Liu who was embarrassed, she spoke directly to him, "You want me to call the young lady away first, and then let you and others talk about the lard and confidentiality, right?"

"Yeah!" Zhang Liu nodded vigorously.

Faced with such an understanding Xiang Wanying, he felt a little relaxed.

Without saying anything else, Xiang Wanying first adjusted her maid outfit, and then she began to cooperate with Zhang Liu.

After Xiang Wanying called Xiang Lingying out.

Under the confused gaze of everyone, Zhang Liu walked in with an embarrassed look on his face and told them about his idea of ​​trying to make soap with lard.

"Is it Xiang Lingying's birthday today?"

"Um... Zhang Liu, do you need my help?"

"I can help too!"

Everyone's reaction was unanimous agreement, and they began to help enthusiastically.

Seeing this scene, Zhang Liu felt relieved.

He smiled and shook his head to reject everyone's suggestions for help, then turned and walked into bamboo house No. 1.

There are four bamboo tubes of lard on the bamboo table here.

It was exactly what was stewed from the two big wild boars last time.

At present, two-thirds of one of the bamboo tubes has been used up during this period of time.

After being on a deserted island.

Girls are no longer as extremely fat-averse as they were before.

On the contrary, stir-fried dishes with lard or greasy meat with roasted taro have become their favorite food, which is delicious and filling!

Pick up the bamboo tube which only has one third of lard left.

Zhang Liu knew how precious lard was, so he didn't plan to use it all. He only poured half of it into the small clay pot in his hand.

Then Zhang Liu took the bowl of lard and walked into his bamboo house No. 2.

Standing there, he did not take action immediately, but began to think seriously.

Ancient soap making technique.

Zhang Liu didn't know anything about the place.

So at this moment he could only rely on the rough memories in his brain to think about the steps mentioned in the novel.

But after thinking about it for a long time, Zhang Liu still couldn't come up with any good ideas.

Because he really didn't have much impression...

It's shameful.

Compared to the soap-making process, Zhang Liu is more likely to remember the plot where the protagonist successfully makes soap and then pretends to be cool and slaps the heroine in the face while trying to win the heroine's favor.

After all, the former can be seen in your own bathroom, but the latter is really cool.

Just as he was in Bamboo House No. 2, thinking hard about the soap-making process.

Zhao Yiran in bamboo house number three was also lost in thought.

She was forced by her family to read a bunch of ancient books to improve her cultural knowledge, and she seemed to have seen relevant records in the book "Kaogong Ji".

But at the moment, no matter how Zhao Yiran frowned and thought, she couldn't review the whole thing.

After thinking about it, I just vaguely remember that wood ash seemed to be used for washing clothes, and it had little to do with soap.

Under Song Shuyao's worried gaze, Zhao Yiran could only sigh slightly and end his reminiscence.

She then went on to make mud bricks.

at the same time.

Zhang Liu, who had already sorted out his general ideas, began his own production process.

If we consider the principle, he can at least understand it.

After all, making soap from wood ash is an ester hydrolysis reaction catalyzed by alkali.

This reaction is also called saponification.

It can usually be understood as the hydrolysis of fats and oils.

The same basic principle is used to wash clothes with wood ash soaked in water.

Since it is a base-catalyzed reaction.

So in his opinion, the stronger the alkalinity, the better!

Although the wood ash water burned my hands before, it was only slightly.

There are only two ways to increase alkalinity.

The first is to soak the ash long enough to allow the "alkalinity" in the ash to be completely absorbed.

But this method is obviously not feasible at the moment, as Xiang Lingying’s birthday is today.

Xiang Wanying’s next birthday is May 9th.

Then the second method is to concentrate...

There is still plenty of wood ash at the moment.

So Zhang Liu planned to soak the wood ash in water first, and extract the clear liquid on the surface to boil it.

Then the shells picked up from the beach are calcined into quicklime.

Although quicklime is not directly alkaline, it is also a proper alkaline oxide.

Putting it into water can directly turn it into calcium hydroxide.

If we mix these two together and then add lard for alkali catalysis, we should be able to achieve the "gradual solidification" as described in that time-travel novel, right?

Think through the specific process.

Zhang Liu then started to operate.

First soak the wood ash water, then put it into a small alloy pot and start boiling.

Then he put down the rolling alloy pot, ran to bamboo house No. 1, took out a few relatively complete giant clam shells, and placed them in the fire pit in the corridor for calcination.

The opening of Bamboo House No. 3 faces this side.

Xiang Lingying, who had no idea that Zhang Liu was preparing a birthday present for her, was full of surprise.

But she was also distracted by her head maid with other topics.

While making bricks, the girls were chatting to relieve their boredom.

As the conversation went on, the topic turned to what to do after escaping the predicament.

"Well, as for me... I still hope to continue to be a teacher in the school, right?" Zhou Fang pressed the brick in her hand carefully, and then said with a bit of loneliness in her voice: "After all, there is nothing else I can do in the future."

"Godmother, how about I find you some good people to go on blind dates with?"

Xiang Wanying could clearly hear the loneliness in Zhou Fang's voice.

What puzzled her most was the fact that her godmother had always been single.

No matter from which angle, it's not normal...

This "noble girls' school" was established with special funding from the upper class of society.

Except for Zhang Liu, the first "test" student, everyone else is from the same class... or they have resources with each other.

Maybe some families are thriving and have more resources, while others are declining and have fewer resources.