Of course that kind of material won't work!

Compared to Sister Sparrow, now he has a better material: sponge!

Use it as the main material, add bamboo charcoal and cotton, you can try it!

It's just that you have to wait for the sponge to die completely, the living ones will squirm, the feeling of little bugs crawling around, under the butt, the girls will collapse, right?!

Even if they don't collapse, Lu Zhe himself won't allow it!

It's a sacred place!

Never allow living creatures to approach except yourself!

Eh....

Off topic!

In fact, the sponge fished out will die quickly!

Then it dries out and becomes hard.

After immersion in water, it will become soft again.

Therefore, its characteristics are the opposite of a certain sponge-like substance.

And if it maintains a certain humidity, it will remain soft and elastic.

Until you find a better alternative, you can totally try it with it!

But if you use it directly, there will still be bacteria and microorganisms, which will easily destroy the pH of the sister!

Once the constant pH is destroyed, the girl's body fragrance may disappear, emitting the smell of Auntie.

Brain make up a few flower-like girls with the smell of middle-aged women, Lu Zhe is all wrong!

No, microorganisms and bacteria must be disposed of!

So what exactly to do?

The easiest way is to boil water?

Nor will it!

Although high temperature will kill bacteria and microorganisms, it will also destroy the internal structure of the sponge and directly boil the sponge.

Lu Zhe has already thought of a way!

That is the famous "pasteurization method"!

Sounds tall, but the actual principle is very simple!

The specific method is to maintain a temperature of 50 degrees Celsius to 60 degrees Celsius for 30 minutes, which can kill 99% of the bacteria in the food, but will not destroy the original nutrition and taste of the food.

Sterile eggs and milk are usually sterilized in this way.

The effect is very nice!

So what should be used to maintain a fixed temperature?

Yes, it's a stone scoop!

This is the third way to open the stone scoop that Lu Zhe thought of - pasteurization!

Lu Zhe began to work on production.

First make a small fire frame, control the size of the flame, and then put the stone spoon with coconut water to boil, the heat of the small fire is not enough to completely penetrate the thick stone wall, but it can keep the water in the stone spoon at a constant temperature for a long time!

After boiling for a while, Lu Zhe tried the water temperature with his hand, and there was a slight hot feeling, but he took a sip but it didn't reach the point of burning his mouth.

That's right, that's about 60 degrees!

Waited a little longer, tried again, still this temperature!

That's it!

Next, put a few sponges into the stone scoop, and the watch is timed for 30 minutes.

Don't be idle at this time, he began to look for other materials.

The backpack has several old clothes that have been picked up.

One of the cartoon vests, made of pure cotton, has a broken place.

Looking at the size should be a few years old girl's vest, probably thrown away by her mother because of the damage.

It can be used to wrap sponges and bamboo charcoal.

Small clothes are not afraid of high temperatures, wash them and blanch them with boiling water in cans, and then expose them to the sun.

After thirty minutes, take out the sponge.

At this time, the sponge is already dead, and the bacteria and microorganisms have been almost destroyed.

Although the rapid cooling time after sterilization is better, but now there is no such condition, so we can only retreat.

Pinch and still be resilient!

However, a sponge that is too soft will definitely not be very comfortable between the legs, in order to give the girls the most perfect experience, you have to make it thinner!

And cut into thin slices, which will affect its water absorption!

Never mind!

Lu Zhe got some bamboo charcoal. Sandwiched between two sponges to enhance its adsorption!

Then cut the girl's clothes into strips of about 20cm and wrap the sponge and bamboo charcoal tightly inside!

This can not only ensure its water absorption, but also not appear too thick and uncomfortable to wear.

Put it in the fat time, you can play its role perfectly!

Lu Zhe made five sets!

It should be enough for the time being.

At the same time, neither Jiang Yao nor Tang Xiaoguo used the last sanitary napkin.

From the first dispute, to the later humility, to the current brainstorming, everyone is discussing a question:

how to live without sanitary napkins!

Some say use hay, some say use cloth, some say wash it every time with seawater, and some say it's not a big deal if you dry it or not.

But if you think about it, it's not reliable!

At this moment, Lu Zhe returned to the camp.

When they saw Lu Zhe coming, they all lowered their heads and did not speak.

After all, the trouble of girls is still very humiliating for boys to know.

But they underestimated Lu Zhe's Geng Zhi:

"What's wrong, because the aunt scarf is not enough?"

Both girls' faces turned red.

Lin shallow sighed: "Even so, it still feels a little strange to be asked directly by a boy."

"It's okay, the problem is solved."

"How to solve it?"

Lu Zhe showed his masterpiece: "Use this!"

Ning Shu blinked his eyes: "This... What is it? "

Brother Zhe's exclusive secret, island version of sanitary napkins!"

Ning Shu petrified, and then asked loudly: "Why... You would make this kind of thing!

Several other girls also widened their eyes: "Yes, it's so strange!"

"Not for you yet!"

Lu Zhe said quite proudly: "After all, girls are more troublesome, as the only man on the team, you should be happy to help you solve the existing problems!" "

Four girls look at each other!

Happy what, happy, all over the body is not right, okay!

Shen Bing took it over embarrassedly and pinched it: "Hey, it's quite like that, what do you use to do?"

"Sterilized sponge, bamboo charcoal, are all materials with strong adsorption, plus sterilized cotton shirt, which can effectively absorb water and will not cause a bad effect on the immature skin there."

More importantly, this cloth as a cotton pocket can be sterilized and disinfected every time, reused, only need to replace the sponge and bamboo charcoal inside. Clean and comfortable, no impact on exercise during the day, no side leakage at night, absolutely give you considerate care and the most intimate protection!

After saying this, several girls opened their mouths wide, and they were all completely speechless.

Tang Xiaoguo said: "Xiao Zhezhe, are you serious?

"Of course!"

Ning Shu was stunned: "Lu Zhe, don't tell me that you also learned this from a hundred thousand whys!"

"This..." Lu Zhe wanted to make up another reason, but he really couldn't think of it, so he had to nod:

"Yes!"

"You tell me which version of 100,000 why would you teach this kind of thing?"

"That's not important! The key is to actually solve the problems that you will face in the future. Even if we have ten packs, we will run out soon. "

What was said... "

But by the boys' science popularization of this kind of thing, I feel that the whole person is not good."

"Forget it, Lu Zhe is not an outsider either!"

Shen Bing was a little helpless, but she also understood that if they stayed on the desert island for a long time, these were the problems they would need to face sooner or later.

She pinched this thing again, feeling that the softness and comfort were not bad!

Her heart moved, don't look at this thing is inconspicuous, maybe it can really solve the big problem they are about to face!

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