"Wait, is this salt?"

As a result, when Xiaoluo first added salt to him, the small spoon of snow-white powder made him stunned.

The Cui family controlled the salt industry, so he used pickles last time to trade because that thing was extremely costly for their family.

But even the salt they sent to the palace to the emperor was not so flawless.

In ancient China, whether it was sea salt, lake salt, or well salt, it was mostly made of brine as raw materials, or tormented by firewood, or exposed to wind and sun, and the water evaporated to obtain salt.

However, no matter which method of salt is used, there will inevitably be some impurities, and there are no such snow-white and flawless salt particles.

As for the civilians and even the Tang army, they used more vinegar cloth and salt cloth, which were cloths cooked with salt and vinegar or cloths cooked with salt alone.

This is easier to carry and store, and secondly, it is because such a cloth absorbs salt. When cooking, throw it into the pot to make the dish salty smell, there are not so many impurities such as sand.

"This is how my salt is!" Although Xiaoluo was also surprised before, now she is only proud. Naturally, the things of her young master are the best.

After saying that, he put salt and took the small bottle of MSG.

"Is this MSG?" They are also small white and flawless particles, but Cui Zhongqing still saw the difference.

This is called MSG. If you look closely, you will have long prisms, while if you are salt, you will have small square crystals.

He stopped Xiaoluo's hand that wanted to put MSG, and took a sip of the soup in front of him.

This is not much different from the soup he usually drinks. In addition to the fresh aroma of the dishes, it also has a salty smell.

The purpose of this is to compare the difference between putting MSG and not putting MSG. Until now, he also knows that Tang Ping invited himself here today mostly for this thing called MSG.

Xiaoluo carefully put the MSG into the soup.

Cui Zhongqing picked up the spoon and took a sip, and the taste was indeed different.

"This is~" Cui Zhongqing took another sip, smashed his mouth, and finally asked in confusion: "This taste is very similar to the soup made by Kombo!"

Tang Ping nodded: "That's right!"

Because Cui Zhongqing's family is in a salt business, he has also been to the sea salt production place.

Local people often use a plant called kelp, which is what we call kelp to make soup.

The umami flavor of Kumbu soup is very similar to the soup he drinks with MSG.

Of course, the Khumbu mentioned in the Tang Dynasty is actually from the family Acetae family, while our modern kelp is from the family Acetae family, which is slightly different, but the two belong to the order of the order of kelp, so I won't look at it in detail here.

Kelp is rich in sodium glutamate. Japan has used kelp to extract MSG, and the main ingredient of MSG and chicken essence is sodium glutamate.

Although he tasted this taste, Cui Zhongqing didn't know how the MSG was made. He just saw that Xiaoluo's small teaspoon was only a small amount of MSG, and put it into the soup, making the soup so delicious.

"Mr. Cui Er thinks how would I sell this thing if I took it out and sold it?"

Cui Zhongqing looked at the soup in front of him and thought about the taste again. It was not because he boasted that few wealthy merchants in Chang'an had drunk Kunbu soup, so it was difficult to refuse such a umami flavor after contacting the first day of the New Year.

As long as the price is not outrageous, it is difficult for those powerful people who pay great attention to food and clothing to reject such things.

So he said the truth: "It should be able to sell for a good price."

"I wonder if Mr. Cui can help me? I'll help me advertise?" The reason why Tang Ping found Cui Zhongqing but did not find Li Jing who was more familiar with him was because their Cui family is in the salt business, which is also professional.

"What's the benefit of me doing this?" Cui Zhongqing asked with a smile.

"What benefits do you want?"

Cui Zhongqing took the small salt shaker just now and said half-jokingly and half-seriously: "Brother Tang can tell me how to purify such pure salt particles?"

"Uh..." Tang Ping scratched his head and knew that he would ask this question, but he really couldn't teach this thing.

Don’t look at the easy things mentioned in those time travel novels, you can purify the ancient coarse salt in just a few seconds.

After he checked carefully, he found that it was unlikely at all.

Because the salt produced by the salt making process at this time actually contains calcium chloride, magnesium chloride and sodium sulfate.

Although the components of these impurities in salt are not good, they cannot be removed by heating, concentrating, cooling and crystallization.

To get rid of these things, at least barium chloride, sodium hydroxide, sodium carbonate and hydrochloric acid are needed.

There are not many things in this era, but to get them through, you must also ensure the dosage and reaction of each step. To be honest, relying on his 2g network, even if he knows one, he may not be able to get it out.

So he said the truth: "I really don't know how to purify this method, and I can't teach you, but if you can help me sell MSG, I can sell 100 kilograms of such refined salt to you every month, and I will no longer sell it to others except you."

"100 kilograms? The deal was completed!" Cui Zhongqing thought for a while and nodded in agreement.

He didn't really think that Tang Ping would hand over this kind of snowflake salt purification technology to himself. To put it bluntly, if there is such a technology, who doesn't hide it?

If their Cui family had such technology, it would definitely be the core secret, and it would be impossible to exchange it no matter what it was used.

It is very good to be able to exchange 100 kilograms per month now.

“How much is the price?”

"How about five times the most expensive salt sold by your Cui family?"

This price made Cui Zhongqing stunned.

Now a dou of rice in the Tang Dynasty is 10 yuan, and 12 pounds of rice is 20 times the price of salt. A dou of salt costs about 200 yuan, and then a pound of salt costs only 17 yuan.

Of course, the best salt is more than this, about 40 yuan.

The price of five times is only 200 yuan.

The most important thing is that Tang Ping promised that this kind of salt would not be sold to others.

In fact, according to Cui Zhongqing's idea, such good salt is probably difficult to extract, and 100 kilograms per month is not a small amount for Tang Ping.

So 200 yuan per pound is really not expensive for the Cui family. According to the principle that strange goods are affordable, the profit of selling these salts to the powerful royal families of various countries is more than ten times?

Moreover, such scarce luxury goods are sometimes not just as simple as making money.

This is also the reason why Wangshulou was willing to spend a full 1,400 kilograms of grain to buy a bottle of wine at that time.

So at this moment, Cui Zhongqing felt that the price was too conscientious.
Chapter completed!