The so-called sea salt, of course Li Shimin has seen it.

And he had not only seen boiled sea salt, but also seen the sea salt that Li Yuanjia brought him before...... In fact, even if Li Yuanjia didn't take the initiative to send them, the emperor knew his brother's every move well, and he sent people to the beach to dry salt.

But......

Looking at the three boxes in front of him, as well as the full salt grains inside, Li Shimin's eyes blinked, and finally took a breath of cold air and said, "Eleven Lang, what do you mean...... These are all sun-drenched? In a year, how many people can dry thousands of catties of refined salt? ”

These three boxes full of salt are too impactful!

Li Shimin knows that seawater can indeed produce salt, and he also knows that this old eleven has the ability to turn coarse salt into fine salt...... But he also clearly remembered that several people could only produce hundreds of catties of salt in a year, and the cost of turning one catty of coarse salt into fine salt was also frightening......

Anyway, ordinary people can't afford it!

This means that the emperor has little interest in those sea salts, after all, the dignitaries have refined salt to eat, and the common people ...... Hehe, can you afford to eat the three melons and two dates that ordinary people earn in a year?

It's nice to have a mouthful of coarse salt to eat.

Li Shimin is not the kind of emperor who has never been out of the imperial city in his life, he knows the difficulties of ordinary people's lives, and knows better that for many farmers, even coarse salt cannot be eaten openly, let alone refined salt?

So the three boxes of salt in front of him made Li Shimin's eyes shine!

"Second brother, this refined salt can't be dried."

Shaking his head, Li Yuanjia explained with a smile: "In fact, what they dry is still coarse salt, bitter and astringent!" However, the craftsmen in my house are very diligent, and they have improved their previous crafts a lot...... Hehe, second brother, now the cost they need to purify a pound of coarse salt is less than half of what it used to be! ”

"Oh? So powerful? ”

With a frown, Li Shimin's expression became serious for the first time.

"Hehe, that's it!"

Nodding, Li Yuanjia naturally desperately put gold on the faces of his craftsmen: "In fact, the reason why it used to cost a lot was mainly because there were too many impurities in this salt...... Mix the rest with some potions, and you're pretty much done. ”

With a smile on his face, Li Yuanjia actually had some regrets in his heart.

In terms of the technical level of this era, in fact, Han Lucheng and they have achieved the ultimate in physical purification...... Well, to put it bluntly, it's filtration! First strain with a coarse cloth a few times, then strain with fine cotton gauze a few times, and then strain with a kind of filter paper made by a paper workshop, and the salt water suddenly becomes translucent.

The only thing that makes people feel distressed is the filter paper made by the paper workshop.

Although the cost is not as good as Hanwang paper, it has to be said that if you filter salt water on a large scale, the consumption is just as distressing. After a rough calculation, a pound of refined salt alone consumes filter paper, at least two big dollars!

Fortunately, the technical level of chemical purification is getting higher and higher, which reduces a lot of costs.

Li Shimin raised his eyebrows and asked with some curiosity; "Oh? In this case, if you are allowed to sell these refined salts, how much will it cost a catty? ”

"Ahem, second brother, how can you sell it?"

Hearing him say this, Li Yuanjia suddenly felt a little embarrassed: "I let people go to the beach to dry salt, not to make money, purely to let more people eat good salt...... But if you really take it out and sell it, ten copper coins per pound should be able to protect the capital! ”

“……”

Looking at the serious appearance of the kid in front of him, Li Shimin suddenly laughed angrily: "Ten dollars a catty? Eleven Lang, do you know how much a bucket of salt is on the market now? ”

"yes, I know!"

Blinking, Li Yuanjia smiled and said, "I asked people to inquire about it, and now a bucket of coarse salt can be sold for about twenty yuan...... But second brother, that's real coarse salt, who wants to eat that with a little bit of family background? Even if my fine salt is several times more expensive, there should be many people rushing to buy it, right? ”

While speaking, Li Yuanjia quietly observed the change in the emperor's expression.

To be honest, the price of salt in Datang is far lower than Li Yuanjia thought, especially before the crossing, he always felt that it was difficult for the ancients to eat salt, so the price of salt must be very expensive! But after the Zhenguan period, a little people asked Li Yuanjia to know that a bucket of salt was only a few dozen dollars!

You must know that the amount of a bucket is a lot, at least ten catties up!

As a medical student, Li Yuanjia certainly didn't know that the key to the price of salt in ancient times was the imperial court...... Today's Datang does not collect salt water, and the price of salt is naturally cheap, and when Datang can't make ends meet in the future and begins to collect salt taxes, it can do "all the salt in the world, and the price of 100 yuan per hour is 110 yuan"!

I bought all the salt in the world, and then sold it for a bucket for a hundred dollars!

And the selling price is 110 Wen!

In other words, the price of salt was originally only ten cents a bucket, but the imperial court forcibly increased it to one hundred and ten cents, which directly increased tenfold!

It's just that as Li Yuanjia said, coarse salt and refined salt can't be compared!

As for the kind of salt that ordinary people eat at home, the big black lumps, even if they are given to Li Yuanjia for nothing, he will not taste a mouthful.

Therefore, Li Yuanjia believes that people with good conditions may also be interested in this refined salt.

It's just a few times more expensive, what's it?

At least the refined salt that Han Wangfu bought every day in the past...... Well, compared to the so-called green salt, this price is also the ordinary level, which is not cheap, but it is definitely not expensive!

And......

Seeing that the emperor squinted his eyes and did not speak, Li Yuanjia suddenly said: "Your Majesty, the minister is willing to dedicate this method of drying salt and the method of refining coarse salt to Your Majesty!" ”

"Huh? What did you say? ”

After a pause, Li Shimin, who was thinking carefully, looked at his younger brother in surprise: "You want to give me these methods?" Eleven Lang, you made people go to the beach to dry salt, and then did everything possible to improve and purify the method, just to give them to me? ”

"Ahem, yes."

With a grin, Li Yuanjia said: "In this way, Your Majesty, you can give these methods to the world, and people will be able to eat clean fine salt in the future, wouldn't it be wonderful?" ”

“……”

After listening to his words, the emperor's eyes gradually became strange.

To be honest, he was a little excited.

Although he is ruthless and has such and such problems, it is undeniable that Li Shimin is still a good emperor, so when he hears things that are beneficial to the people, he is naturally quite moved.

But he didn't understand, what did this old eleven want to do?