Lin Xu did not tell Yan Ning this idea immediately, but planned to punish her for a few days to let her remember it, so that she would not get too hot in the future and do something that violates her principles.
In fact, the punishment he gave Yan Ning was not too severe.
For ordinary people, carrying thirty kilograms of weight and running thirty miles in the morning is indeed an extremely difficult task. It is normal for them not to be able to endure it. But for Yan Ning, who has a foundation in martial arts, this training intensity is considered
It's not too big, she gritted her teeth, she will definitely be able to endure it!
After a month of training like this, both her physical fitness and mental strength will definitely be greatly improved!
As for Xiaoying, who has excellent skills and bottomless skills, this kind of training intensity is even more difficult!
After talking about this matter, Lin Xu was about to wash his face. He saw a brand new piece of light yellow soap in the box next to the washstand. He picked it up and smelled it. It had an elegant scent of osmanthus.
In fact, he made soap not long after he traveled through time and came to this world.
After all, for him, a good young man of the 21st century who is used to washing his hands before meals and taking a shower before going to bed, it is really unbearable to live without soap!
In the past, people in this world mainly used soap locust to wash their hands, hair, and clothes. Although soap locust has a certain decontamination ability, in Lin Xu's opinion, this decontamination ability is too weak, and it is difficult to use it.
It is also inconvenient, because the freshly picked saponins are very tough and cannot be used for washing directly. Instead, they must be burned repeatedly on the fire. When the yellow-green mucus emerges and becomes soft, take them out and then use them again.
washing.
It’s really time-consuming and laborious!
In addition, in some wealthy people's homes, pancreas is also used.
Yizi is made from a mixture of pig pancreas and plant ash. It is the prototype of soap. It has a much better decontamination effect than saponin and is much easier to use.
However, things like pancreatic juice are too expensive and few ordinary people can afford them.
In addition, the decontamination ability of soap is also far behind that of soap, and it also has a strange smell. Nowadays, the upper class in the world are accustomed to carrying a sachet with them to mask this strange smell.
So, Lin Xu came up with soap.
Compared with pancreas that is simply mixed with pig pancreas and plant ash, then dried and formed, the process of making soap is much more complicated, requiring refining, saponification, salting out, washing, alkali precipitation, molding, etc.
Multiple steps.
Of course, this is nothing to Lin Xu, who holds a doctorate in materials science and chemical engineering!
In addition, the biggest difference between soap and soap is that the main raw material for making soap is soap nut.
Soap nuts are also very common. Wild soap nuts can be found on the mountains near Linshan Village. However, in this era, people’s knowledge of soap nuts is very limited. Some people crush them and use them directly as washing supplies.
Its properties are similar to those of soapberry. Some people peel off the bark and root bark of the soapberry tree, dry it and use it as a herbal medicine. It is said to have laxative and diuretic effects.
Not long after traveling to this world, Lin Xu went up the mountain to pick some soap nuts, and then made soap through some simple experiments.
After he showed it to Ruolan, Ruolan immediately fell in love with this new type of cleaning product and couldn't live without it ever since.
Later, he bought some spices, mixed them into soap, and made soap. This chapter has been completed!