Unexpectedly, the old salt worker looked at the clouds in the sky, but laughed unhurriedly: "The general doesn't have to worry, just let people get rain gear to cover the rain, this rain will not last long, and it will not destroy the salt furrow, but it will fall just in time." Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ”

"The elder is actually familiar with celestial phenomena and climates?" Zhang Liao was stunned.

The old salt worker said with a bit of self-satisfaction: "The salt sunker does not know the celestial phenomena, and he is a mediocre person." ”

Looking at the old salt worker who looked even more powerful than a famous general, Zhang Liao couldn't help but be speechless, Guo Jia laughed, and even Xun Yu couldn't help it.

At this time, Wang Yi came back to his senses, looked at the old salt worker, and said happily: "Could it be that it is a blessing from the heavens, but it can become rain and salt?" ”

The old saltman said: "Exactly. ”

Zhang Liao couldn't help but be surprised: "What is rainwater salt?" ”

Wang Yi hurriedly said: "The general doesn't know that the salt that has been dried by four salt furrows is not the best salt. ”

"Oh?" Zhang Liao was stunned: "Could it be that there is any other magic method?" ”

He had tasted the salt from the fourth furrow just now, and although it had been through winter and summer, it was still slightly bitter, and the quality of the salt was still much worse than that of later generations.

Wang Yi pointed to the rain clouds in the sky and said: "When drying salt, if it rains heavily, the salt is dissolved, and the work of drying salt is destroyed in one fell swoop. ”

At this time, the old salt worker also spoke: "It is this matter that the grass people want to ask the general, as the county said, to produce high-quality salt, but also rely on the rain of the old world, if this rain falls heavily and for a long time, not only is it difficult to dry the salt, once the flood is launched on all sides, the salt furrow will be washed away, and the particles will be difficult to collect." But if the rain is not too big or small, it falls into this fourth salt furrow, and after the rain stops, the brine is dried, and the salt produced is the best salt, granules, whiter than snowflakes, without a little bitterness, and our salt workers call this salt 'rainwater salt'. ”

At this time, raindrops had fallen in the sky, and the guards borrowed the clothes and hats from the nearby salt workers, and Zhang Liao asked them to put them on the old salt workers and Xun Yu, Guo Jia, Wang Yi and others, and he felt the rain falling from the sky, and muttered the rain salt in his mouth.

At this time, the old salt worker sighed: "It's just that this suitable rain is really rare, and most of it is either too big to flood, or too small to help, so this high-quality salt also depends on God's gift." ”

He looked at Zhang Liao expectantly: "Why can the rain in this old world produce high-quality salt, I'm afraid only a strange person like the general can see through it." ”

Xun Yu, Guo Jia and others on the side heard this, they all stared and pondered, but although they were proficient in political affairs and scriptures, and had great wisdom, they were not so proficient in these natural principles, and it was difficult to understand these mysteries due to the influence of heaven and man's induction thoughts.

After thinking for a while, they couldn't think of a reason, and they couldn't help but look at Zhang Liao.

Xun Yu's perception of Zhang Liao is getting better and better, this lord is not only able to fight well, but also loves the people, is good at governance, has benevolence, and has a big mind, dares to think, dare to act, dare to delegate power, and has a deep insight into things, which makes them unreachable.

And if this rainwater salt is broken by Zhang Liao, then Hedong salt will inevitably have a qualitative leap in texture, so that the reputation of Hedong salt is the best in the world, and it is for the benefit of the people, Ze and future generations, after all, bitter salt is harmful to the body.

To see things, we must look at the essence, this is Zhang Liao's consistent view, and he is thinking about the essence of rain and salt at this time.

Rainwater salt is poured by rainwater, and the bitterness of the salt particles is eliminated, which must be that some of the impurities are separated again. But why can this rainwater fall into the brine, once again separate the other components in the brine, and let the crystallized salt eliminate the last bit of bitterness?

The key to this is rain, so what is the essence of rain?

As Zhang Liao walked, he stretched out his hand and let the cold rain fall on his palm, and soon his palm was filled with a handful of water.

Rainwater...... Rainwater...... Isn't it just water?

Others may think that the rain falling from the sky is a mysterious thing that cannot be explored in it, but Zhang Liao knows that rain is just water.

Under the gaze of everyone, he put the handful of rain in his hand to his mouth and tasted it.

The rain tasted cool and diluted the bitterness of the salt in your mouth.

His heart moved, he lowered his body, stretched out his other hand to pluck some brine from the salt furrow, and tasted it.

The brine is slightly warm, bitter and salty.

One light, one bitter salty. One is cold, the other is warm.

Thinking of some of the influencing factors in the chemical reaction, Zhang Liao thought thoughtfully.

The difference between this rainwater and the brine in the pool is only that one is fresh water, the other is salt water, one is low temperature, and the other is high temperature.

This may involve solubility and temperature, and his knowledge of chemistry has long been forgotten in Java, but although he does not understand the principle of chemical reactions, he knows that there is something that can replace rain.

Under the same conditions, fresh water, low temperature, river water, stream water, and spring water are all fine!

He looked up through the rain curtain and looked at the north side of the salt pond, and on the way he came, he saw that there was a sweet spring there, which tasted sweet, but it was introduced into the salt pond by the salt workers, not in the salt furrow, and in the Zhongtiao Mountain in the south, and in the Xie County in the west, there were also several sweet spring clear streams, which could undoubtedly replace the rain.

At the moment, the most important thing is to verify your guess first, and see that it will not work.

Six days later, the sun shone brightly on the earth, and the south wind blew slowly.

On the bank of the salt pond, Zhang Liao, Xun Yu, Guo Jia and hundreds of salt workers gathered here, watching a stream of clear water flow down a canal.

This canal has just been dug in the past few days, the bottom of the canal is a brand new cement, the source is the sweet spring not far from the north of the salt pond, and the flow is a salt furrow, which is to verify Zhang Liao's speculation about the mystery of "rain salt".

This salt furrow belongs to the fourth salt furrow, which is brine, and under the sunlight, the brine has begun to bloom with salt flowers, and it is at the time of crystallization and salt.

The canal does not flow directly into the salt furrow, but is connected with the salt furrow by three small channels, which correspond to the three inlets of the salt furrow, and the opening of three small channels and three inlets is for the uniform intersection of fresh water and brine.

Because when it rains, the rain and the brine belong to the most even intersection, and now Zhang Liao can only try his best to imitate this form, in order to verify this mystery, he can be said to have considered all of them.

In addition, there are clean stones and cloth in the small canal, which are used to filter impurities in the stream water and ensure the cleanliness of fresh water.

"Divert water!"

With Zhang Liao's order, the three outlets on the south side of the canal were opened at the same time, and the spring water in the canal flowed down the three small canals to the salt furrow.

The experienced old salt worker took four or five salt workers with a wooden ruler to measure the depth of the water in the salt furrow, and watched nervously and expectantly as the spring water slowly flowed.

This is also Zhang Liao's instructions, he believes that brine and fresh water mixed salt, there must be a most suitable ratio, more or less can not achieve the effect, as the old salt worker said, the traditional "rainwater salt" must also be just the right amount of rain to be born, heavy rain and light rain are not good.

Zhang Liao could not measure the ratio of fresh water and brine, but he used a wonderful method, when it rained that day, he asked people to first use a wooden ruler to measure the depth of the brine before the rain in a salt furrow, and then measure the depth of the water after the rain, and roughly calculated the mixing ratio of rain and brine, and fortunately the precipitation that day really produced rain salt, Zhang Liao used this ratio to verify.

His method of measuring proportions is praised by everyone, and Xun Yu is even more Taoist, this method can be used in many aspects such as agriculture and arithmetic, and it can be promoted.

As the spring water flows into the salt furrow, the salt flowers that were originally produced by the brine in the furrow slowly disappear again, and the coarse salt that was originally crystallized at the bottom of the furrow is dissolved again.

Under the attention of countless people, time passed slowly, the water surface reached a scale of a wooden ruler, several salt workers shouted "stop the water" at the same time, and several salt workers on the salt furrow hurriedly blocked the water inlet.

The old salt worker went ashore, looked at the sun overhead, and said to Zhang Liao: "General, go back and rest, the sun is fierce at noon, it is not advisable to stay longer, and you can start to produce salt in the afternoon today." ”

Zhang Liao shook his head and said with a smile: "I'm afraid you're not in the mood to rest, I'll just wait here." ”

Hedong County is a low-lying basin, although it is early summer, the weather is extremely hot, but Zhang Liao and others really don't have the heart to go back to rest, and the same is true for those salt workers.

In the expectation of everyone, the time slowly came to the afternoon, the water level in the salt furrow slowly dropped, and salt flowers began to grow on the water surface.

Nearly an hour passed, and more and more grains of salt were coming out of the bottom of the water.

Before Zhang Liao could speak, the old salt worker on the side couldn't help but jump into the salt furrow, fished out a handful of salt grains from the bottom of the water, and put them in his mouth to taste them.

The old salt worker's tears flowed down his eyes.

"Isn't it possible?" When everyone saw this, they were disappointed, but they saw the old salt worker kneeling down towards Zhang Liao in the water, and shouted: "It's done!" It's done! Rainwater salt became! The sky has eyes, and the wise man is given to me. ”

It's done! Hundreds of people around the salt pond cheered in unison.

The success of Rainwater Salt is very important to them!

You must know that at the time of the Three Emperors and Five Emperors, the people fished salt from the salt pond in the east of the river, and added burning water to boil salt, these two ancient and clumsy methods lasted for thousands of years, until the end of the Warring States Period, people explored the method of drying salt in the salt furrow.

From the method of drying salt in the salt furrow to the method of drying salt in the four furrows, it has taken hundreds of years to reach the current situation, but it is still messy, the salt quality is uneven, and the restriction is too large and the output is not high.

However, this development process has gone through thousands of years, and it has been explored by countless people, which can be described as long and difficult.

Now, under Zhang Liao's attempt, rain salt and high-grade refined salt have been produced through artificial means, why don't everyone like it?

There is seawater boiling salt in the land of Qilu, but the process is extremely complex and the cost is extremely high, and there is well salt in the cool land, but the yield is low and the cost is high. Although Hedong salt is good, it has flaws, and it depends more on the time.

The successful trial production of rainwater salt, Hedong salt no longer has to rely on the time of day, which marks that Hedong salt has truly become the world's first salt, regardless of output, texture, or cost!

At this time, even Xun Yu, who has always been steady, was full of ecstasy, and as for Guo Jia, he shouted and cheered for Zhang Liao thrown Zhang Liao up.