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[Thank you for the tips of "Cold-blooded Innocence" and "・Little Liangzi・" ~~~ Grateful ~~~]

In the current environment, if it is refined salt, it will be sold for three taels of silver per load, and there is absolutely no problem. If it is pure green salt, it can even be sold for more than ten taels of silver per load. Compared with the price of three or four hundred yuan per load of coarse salt, it is really one heaven and one underground. If the market is monopolized, the price can be higher.

According to the salt merchants in Jimo County, since the outbreak of the civil unrest in Shaanxi, the supply of green salt has been intermittent, coming and going, and the market has been out of stock for a long time. It's a pity that it's still out of stock. If a large amount of refined salt appears at this time, the profit can be imagined, and it is absolutely no problem to sell it for 100 wen per catty.

When he said this, Zhang Zhun remembered that the coarse salt he used to brush his teeth every day was very large and had a lot of impurities, which was indeed strange and uncomfortable. He had been preoccupied with hunger before, but then he had been so engrossed in the convoy that he hadn't had a chance to notice it. For rich and noble families, they are used to gargling with green salt, and suddenly the green salt is gone, which is really uncomfortable.

Zhang Zhun said eagerly: "You prepare a few things for me, and I'll get some refined salt for you." ”

Yang Ruifeng hurriedly began to prepare.

Even if his surname is wooden, he clearly understands that if he can really turn coarse salt into refined salt, the time to make a lot of money will come. At present, Shandong Province, and even the Beizhili region, have a bottomless demand for refined salt and green salt, and it is not enough to fill it. It is not an exaggeration to say that it is a money tree and a cornucopia.

Soon, Yang Ruifeng prepared the relevant utensils according to Zhang Zhun's requirements, and he and Yang Kangsheng were also ready for battle. Looking at their expressions, I knew that they were quite nervous in their hearts. This is inevitable, the difference between refined salt and coarse salt is too large. If Zhang Zhun can really purify coarse salt into refined salt, it will definitely make a lot of money.

In fashionable parlance, it's heaven on one side and hell on the other!

Zhang Zhun is naturally not as nervous as them, this is a sure fact, if he does it wrong, it must be a detail that has not been done well, not the wrong method. When Yang Ruifeng was preparing the relevant utensils, he turned out his previous memories and carefully straightened out the context. Coarse salt purification is an experimental project that every student has done, and although many details have been forgotten, the basic procedures are still remembered.

Distilled water is obviously not available, it is difficult to collect, but the well water in Yangjiatun is still quite clear, use a wooden basin to fill the well water, quietly place it for a day, let the impurities precipitate, as long as the upper part, the water source obtained in this way is relatively clean, close to distilled water.

The filter paper can be replaced with a cotton cloth. Brand new cotton cloth is hard to find, poor people, cotton cloth is bought by the ruler, there is no surplus cotton cloth at all. However, after careful cleaning of the old cotton cloth, it can basically meet the requirements.

The basic process of coarse salt purification is to first filter and then evaporate, focusing on removing impurities in coarse salt. Filtration needs to be repeated to remove as many impurities as possible. Use a clean cotton cloth every time you filter. The work of cleaning cotton cloth is still very tedious.

Zhang Zhun is only responsible for explaining, and the specific work is made by the two brothers Yang Ruifeng and Yang Kangsheng, and Yang Kaide and Yang Yinghan and others are working on the side to see how coarse salt can become refined salt.

The test used a large pot for boiling salt, which was carefully washed, dried in turn, and then placed on the stove for later use. Filtered barrels are also needed, which are also washed and dried for later use.

Because it was the first test, it was necessary to see the effect as soon as possible, so Zhang Zhun put about ten catties of "distilled water" in the bucket, and then dissolved the coarse salt into it continuously until it was saturated. The concentration of saturated brine is about 36%, which means that there are at least three catties of refined salt in the bucket.

After the coarse salt is dissolved, the mouth of the barrel is sealed with layers of cotton cloth, and then turned upside down, allowing the brine to drip naturally until all the brine is dripped. There are a lot of impurities left on the cotton cloth, some are yellow, some are black, and so on. But this is not enough, it has to be filtered repeatedly until no impurities are visible on the clean cotton cloth.

Dissolve the filtered brine repeatedly, pour it all into a large pot, cover it with a cotton cloth, and boil it on a fire below to completely evaporate the water. During this process, it is necessary to constantly stir with a clean stick until the water has completely evaporated. Continue stirring to avoid condensation of salt. The water has completely evaporated, and the white refined salt basically comes out.

"There it is!"

Zhang Zhun said happily.

The people of the Yang family were also quite happy.

If you look closely at the purified sea salt, it is no longer granular, no longer yellow, but white powder. When you stroke it gently with your hand, you can feel a very fine and refreshing feeling. Even if you don't touch it with your hands, you can feel it with your eyes, and the quality is much better than the original coarse salt. Yang Kaide and the others have actually never seen real refined salt, but if they think about it, refined salt should be almost like this.

"It's really refined salt."

Yang Ruifeng has been dealing with salt for half his life, so he naturally understands the difference between refined salt and coarse salt.

In Jimo County, he has seen refined salt with his own eyes.

"What salt!"

Yang Kaide also looked very emotional.

The military households of Fushan Institute have been boiling sea salt for hundreds of years, but they really don't know that they can turn coarse salt into refined salt in this way. If they had known such a purification method before, the fathers and villagers of Yangjiatun would not have been as poor and miserable as they are now.

In fact, it is no wonder that the coarse salt is also boiled by the military households, and after it is cooked, it is immediately packed and covered with cotton cloth, for fear that it will get wet and cannot be sold. Who is willing to continue to dissolve coarse salt in water, filter it over and over again, and then evaporate it again? It is this subtle difference in concept that leads to a very simple purification process, which no one discovers.

Zhang Zhun looked at everyone present, who were the closest to him, nodded thoughtfully, and said in a low voice: "Uncle Yang, this method can only be known by ourselves." If it is learned by others, then the whole Shandong will be refined salt, and the price will not be able to sell. ”

Yang Kaide naturally understood the power of it, and said to his family: "Yulin's words, have you all heard them?" No one is allowed to reveal this method of obtaining refined salt! ”

Everyone nodded.

Yang Ruifeng collected all the refined salt in the pot and weighed it, it was just three catties. He packed the three catties of refined salt in a special bag, and said quite excitedly: "I'll go to Jimo County now to see how much this refined salt can be sold for." ”

Zhang Zhun nodded and said, "Pay attention to safety on the road." ”

Yang Ruifeng agreed, and with the hope of the whole family, he hurried on the road.

He carried the refined salt behind him in a cloth bag, but it was inconspicuous, and I believe that the salt lord would not notice him. As long as you are careful on the road, there should be no problem, he has been to Jimo County many times.

The Yang family was nervous but could not suppress the excitement in their hearts, and continued to dissolve more coarse salt repeatedly, filtered, and evaporated, and then carefully packed the purified refined salt. It doesn't matter if the coarse salt was wasted in the past, but the refined salt can't be wasted, just a handful may be worth a penny!

With hope, the Yang family was very excited. While busy refining refined salt, he waited for Yang Ruifeng to come back. This night, the whole family didn't sleep until after the time passed, when the last pot of refined salt was purified, and everyone reluctantly went to sleep.

Only Zhang Zhun himself, what should he do or continue to do.

By noon the next day, Yang Ruifeng returned.

"Good news!"

"Sold for a good price!"

After Yang Ruifeng entered the house, he immediately said excitedly.

After he arrived in Jimo County with three catties of refined salt, he went to several salt merchants in a row and asked about the price of refined salt. In the end, a salt merchant offered the highest price, 155 yuan per catty. As a result, the three catties of refined salt he brought were sold for four hundred and sixty-five yuan, which was equivalent to the price of one hundred catties of coarse salt. The salt merchant also said that no matter how much such refined salt Yang Ruifeng had, he would buy it all at this price.

For the sake of safety, Yang Ruifeng did not reveal too much information, and came back in a hurry overnight. On the way back, he was almost running, because the soles of his feet were so excited that it was as if he had been stepping on cotton balls. Yangjiatun is hundreds of miles away from Jimo County, and Yang Ruifeng ran for a day and a night, but he didn't feel tired at all. The only thing I regret is that I only brought three catties of refined salt, and if I had twenty or thirty catties on my back, this trip would not have been in vain.

"One hundred and fifty-five wen!"

The Yang family's eyes lit up.

In the past, coarse salt could only be sold for five cents a pound at most!

The price of refined salt is 31 times the price of coarse salt!

That's a big difference!

It's unimaginable!

Profiteering, absolute profiteering!

Thirty times the profit!

Zhang Zhun didn't know much about the price of private salt, and he didn't know whether the price was high or low. However, one hundred and fifty-five yuan is no longer the same as the previous price of three or four yuan a pound of coarse salt. That's a price difference of more than 100 yuan! In the future, the Yang family only needs to be responsible for purifying refined salt and earning the difference in the middle.

In order to celebrate, when Yang Ruifeng came back from Jimo County, he also bought five catties of pork and some other commonly used food. The price of each catty of pork is 50 yuan, and in the past, it took at least ten catties of coarse salt to buy a catty of pork, but now the price of one catty of refined salt is enough to buy three catties of pork. Yang Ruifeng bought pork this time, and he was in a very comfortable mood. The last time the Yang family ate pork, it seems that it was during the Chinese New Year, and everyone ate it was still oil residue.

"Mother, don't fry this pork!" Yang Ruifeng said.

"Got it." Huang was also very happy.

Authentic pork, she hasn't eaten it for a long time.

"Let's eat white rice at noon!" Yang Ruifeng said again.

"Okay! Pure white rice! Huang replied with the same joy.

[Brothers, vote for more recommendations! ] Thank you for your support ~~~~]

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