Many people may have guessed that what Weichen has to do is a very simple saponification reaction.

Half of the ten time-traveling novels in the previous life have made soap, which can be said to be not unusual at all.

It's just that soap is not Wei Chen's goal this time.

The reason why soap is not made is because the cleaning products of people in this era are not as scarce as later generations imagined.

Regarding the current situation of Da Zhou's cleaning supplies, Wei Chen had already inquired about the grocery store in the county seat.

The most primitive "laundry detergent" is the plant ash that every household has.

The ancients discovered the cleaning effect of plant ash very early, and the "Book of Rites" recorded: "The crown is dirty, and the ash is cleaned; Grim clothes, and dust. ”

In short, if the clothes are dirty, you can wash the clothes by adding plant ash to the water.

However, with the development of the times, this cleaning method has gradually been eliminated, and now the most widely circulated among the people is another pure natural plant detergent - soaphorn.

Honey locust, also known as honey locust, is the fruit of the honey locust tree, mashed and added to clean water, you can directly use it to wash clothes.

Acacia trees are widely distributed in Dazhou, almost everywhere, there are many acacia trees growing in Xiyin Village, and a tree can pick dozens of catties of honey locusts.

Honey locust is easy to use, and the decontamination ability is not bad, but it has a fatal drawback, that is, the smell is too strong, and it is really not very friendly to the Great Zhou magnates who pursue aroma.

The powerful people of the Great Zhou used another more advanced detergent - "pancreas".

The decontamination ability of "pancreas" far exceeds that of soaphorn, and it also has the effect of moisturizing the skin, and various spices are added to neutralize the odor of pig pancreas itself, which is also incomparable to the original soaphorn.

Wei Chen inquired, Da Zhou's "pancreas" production process is already very mature.

First of all, the pig pancreas is washed, the fat is removed, and then ground into powder, and then sugar, alkali (plant ash or other natural minerals), molten lard, and various spices are added to make it the size of a rice ball, which is the final product of "pancreas".

After knowing the specific production process of "pancreas", Wei Chen was also taken aback.

Isn't it the two main raw materials for the saponification reaction?

The working people of Da Zhou may not know the term saponification reaction, but they have already applied it to production and life!

Moreover, pig pancreas is also rich in enzymes, under its catalysis, the saponification reaction will occur more fully, and the effect of this "pancreas" may be better than the soap made by Wei Chen with soil methods.

After learning this, Wei Chen understood that it was probably no fun for him to make a fortune in Da Zhou by making soap.

Compared with the price, soap can never be cheaper than soap, people don't want money to pick it casually, how can this compare?

Compared with the effect, the soap made by the soil method will not be more effective than the current "pancreas" of Da Zhou, unless Wei Chen can engage in large-scale industrial production, but this is obviously a fool's dream.

However, how can Wei Chen say that he is also a top student of 985 University, although he is a liberal arts student, but his knowledge is there, how can he be defeated by this little difficulty?

Weichen clearly remembers that in addition to the saponification reaction can produce fatty acid salts (the main component of soap), it will also produce another by-product.

This thing is more valuable and useful than soap, but it has been ignored by those who have traveled through time, intentionally or unintentionally.

And Wei Chen's goal is to make it out.

There's not much to say about the previous steps, it's exactly the same as making soap.

Wei Chen first asked Zhang Xu to dig a dustpan of grass and wood ashes from under the stove, sift the grass and wood ashes, add water until the grass and wood ashes were submerged, boil, and then let it stand for a while.

When the eggs can float, the time is almost right, and the supernatant in the ash water is the lye that Weichen needs.

This lye is corrosive and easy to burn the skin, so Wei Chen didn't let Zhang Xu, a little brat, touch it, but carefully skimmed out the supernatant with a porcelain bowl by himself.

Then Wei Chen and Zhang Xu worked together to set up a cauldron and added all the lard that Wei Chen bought from Youyang to the pot and heated it.

Finally, pour the lye into the pot little by little, stirring continuously for about two or three hours to allow the two to fully react, and then wait.

During this time, Wei Chen was not idle, and went out with Xiao Zhang Xu to the stream to pick up a large pot of fine sand pebbles, Zhang Xu was happily washing the stones there, and Wei Chen was washing the broken charcoal he brought back.

After washing these things with water several times, Wei Chen found a clean empty jar, smashed a small hole with an iron cone, and inserted the half-foot-long thin pipe into it.

Spread cotton cloth on the bottom of the altar, and put a layer of the finest carbon on the cloth, and then spread a layer of cloth, and a layer of small pieces of carbon on the cloth.

After that, there is cloth - fine sand - cloth - small pebbles - cloth - large pebbles, so fine and fine five layers, a simple filter is completed.

Wei Chen smiled with satisfaction, and returned to the kitchen with the filter altar, at this time, the saponification reaction in the pot had almost been carried out, and the oily yellow soap on the top layer had begun to solidify.

Wei Chen hurriedly skimmed out the top pure soap with a bowl, and after this part solidified, it was soap.

Zhang Ming and Wei Ruyi watched Wei Chen busy tossing for a long time, and they had already held back their stomachs, and when they saw Wei Chen make something, they finally couldn't help but ask: "Brother Chen, what are you messing with?" ”

Wei Chen smiled and pointed to a basin of soft soap and said: "This is called soap, which can be used for laundry and bathing, and it is much easier to use than soap." ”

"Is it really that good?"

Wei Ruyi and Zhang Ming are both suspicious.

Zhang Xu's childish temperament was even more unbearable, so he got up and went to the back room to get the dirty clothes he had changed in the morning, took some water from a wooden basin, grabbed a handful of soap into it, and then began to wash clothes.

I saw Zhang Xu rub it gently, and a lot of white bubbles appeared on the side, and after a few more rubbing, the stains on the clothes disappeared.

Zhang Xu happily picked up his wet clothes and threw them around, and Zhang Ming next to him was also dumbfounded: "This thing is as easy to use as the pancreas used by big families!" ”

"It's a smell of lard!"

Wei Ruyi squatted next to the wooden basin and sniffed it, and couldn't help frowning slightly.

Wei Chen coughed embarrassedly, the soap made from lard has not been deodorized, and it smells like a lingering smell of lard.

To mask this taste, a lot of spices must be added, but in that case, the cost of making soap will also increase a lot, which is one of the reasons why Weichen does not make soap.

After making the soap, there is still some cloudy soap and the bottom layer of alkaline waste liquid left in the pot.

In fact, this waste liquid is not wasted at all, and it hides the treasure that Wei Chen really needs.

Wei Chen scooped out the pale yellow waste liquid and poured it into the filter jar that had been prepared long ago.

After a while, a trickle of water slowly flows out of the thin tube at the bottom of the altar, and the waste liquid has become clear and transparent after filtration.

Wei Chen looked at the clear liquid that kept flowing out, as if he had seen a golden mountain shining with dazzling golden light, and his eyes were full of excitement and excitement.

Finally, this glycerin is made!

Next, as long as it is purified by simple distillation, then his fortune plan will be settled!