Seeing that everyone was finally a little uncomfortable, Song Xuan smiled wickedly, but this is not without reason, although the surrounding environment is good, but there is no water source yet.

The initial refining must consume a lot of water, so you can only grieve some of you, if it is successful, you can search this area later to see if there is a suitable water source.

Pulled the two of them over, and together with himself, he began to fully crush the rock ore that everyone had smashed, and the more it was crushed, the better it could be dissolved in the water.

At this time, the huge stone played a role, Song Xuan and the two of them carried the mined salt ore there, picked up the axe and carefully crushed it, and then slowly crushed it into powder.

Although the efficiency is not high, good things are not difficult to do, it is just a mechanical repetition, and at this time, Song Xuan missed the stone mill he had seen before.

My job seems to be similar to that of a stone mill, which is to grind the fine particles into powder, and if possible, make some stone mills in the back to grind the stones.

Although the wear may be greater, but the efficiency will definitely be greatly increased, and it can also be easier, there are many large animals in the tribe, not to mention the two cows, just Uncle Lu's family can pull it.

It is certainly much easier to work with animal power than with people.

But this is just a beautiful imagination, and at this moment, you still have to use a stone axe to smash it little by little.

But the efficiency of the three of them is still relatively fast, and they have already made a full pot after more than an hour, and Song Xuan feels that this amount is almost enough for an experiment.

Pour out half of the ore powder, then take everyone's kettle, pour everyone's water into the pot, and stir it well with your hands.

There are no lakes and rivers around, so they still use the water they brought, and then everyone understands why the oracle has not allowed them to drink water, which has a more important purpose.

Compared with refining the salt inside, it is not unacceptable for others to be slightly tortured.

After stirring for a while, Song Xuan still felt that it was not enjoyable, which made the two of them raise the fire, stirring while heating, of course, they must not use their hands at this time, Song Xuan found a big wooden stick and kept stirring in the pot, until the water in the pot was about to boil, and then it was removed from the flame.

After leaving the flame to heat, Song Xuan stopped, this was to allow the stone powder inside to settle to the bottom.

Although he knew that there was salt in it, Song Xuan didn't know how much this half pot of water could be refined at one time, so he took advantage of this time to concoct the remaining half of the salt ore in the same way.

Otherwise, if a pot of water is boiled and there is not much, it will not give people enough shock, Song Xuan also dipped his fingers in some water and tasted it, and the salt taste was still relatively strong.

After the water was clear, Song Xuan and Shi Lin picked up the pot and carefully poured out the water on the surface, before reaching the turbid place of the lower layer, Song Xuan stopped in time, this is also the first time to refine salt ore, so the quality must be guaranteed, although there is a lot of salt in the remaining water, it is better not to use it.

Circulating like this twice, to ensure that there are basically no impurities in the water, of course, this must still be visible on the surface, at least when Song Xuan tasted it, there was still a relatively strong bitter and astringent taste in the water.

The next thing is to filter, and Song Xuan also took out the equipment that had been prepared, a huge bamboo tube.

Both ends of the bamboo tube were wrapped in Song Xuan's clothes, and the things in the tribe couldn't be so breathable now, and the mesh aperture was too small to see.

However, there is not much left of these two pieces of fabric, although the clothes are still there, but they have been scraped everywhere before, and it is not easy to pick out a few pieces of space that are completely free of holes.

After that, he could only think of other ways, and Song Xuan also had a general idea, using animal hair as the first filter thing, although it may not be so easy to use, but it is also a little better than the materials that can generally be found here.

The next layer of cloth is a section of washed sand, which has been carefully selected from the river, and after repeated scrubbing, it is very clean.

Further down is some pieces of clothing used as a barrier, and then there is charcoal that occupies half the length of the entire bamboo pipe, which is also the strongest adsorption that Song Xuan can think of, these charcoal are not the wood used by normal people to burn firewood, but bamboo, Song Xuan seems to remember the adsorption power of bamboo charcoal, which seems to be a little stronger than ordinary charcoal.

Although the improvement may not be too obvious, there are only a few things that can be used in the tribe, and a little better can make the final refined salt cleaner.

The speed of this filtration was much slower, Song Xuan poured it little by little with the bowl he was eating, and each bowl of water was filtered several times.

After this toss, the original two large pots of water, at this time there is only one pot left, although there is not much left, but after repeated filtration, the taste is indeed a lot better, at least it does not feel very bitter to eat, has reached an acceptable range.

Song Xuan didn't believe it and filtered it twice more with a bamboo tube, but it didn't seem that the improvement was too big, so he could only stop there, it seemed that this was the limit of this simple device he made, and the remaining impurities were estimated to be possible through chemical methods.

But what made Song Xuan feel a little strange was that the salt traded by the Wuyu tribe seemed to be cleaner than the one that he had refined through so many processes.

"Could they have a better way to refine it?"

Although he was a little curious, he didn't think much about it at this time, Song Xuan lifted the pot to the fire for the last step, and used the high heat to steam to evaporate all the water in the pot, and the last thing left was salt.

This full pot of water, if you want to boil dry, it takes a lot of time, so at this time, the five pots that everyone carries play a role, and the water of one pot is steamed together in the five pots, and the speed is naturally much faster.

Looking at the boiling water, Song Xuan also filled a little with the bowl, and as the water in the bowl gradually evaporated, a thin layer of white crystals was left at the bottom of the bowl.

But at this time, the bowl was very hot, and Song Xuan didn't dare to try it easily, so he could only wait for it to cool down a little before tasting the taste, but this move had already attracted all the people who mined the ore, and everyone showed a very surprised expression when they looked at the salt at the bottom of the bowl.

"This is salt?"

"It should be, it looks similar to the tribe!"

"It seems to be a little whiter! ……”

Waiting for the bowl to cool down a little, he touched it lightly with his hand, and it was no longer hot, Song Xuan was also a little impatient, so he quickly took a slightly moist finger and dipped it some.

Then he put it in his mouth, closed his eyes and tasted it, his mouth was full of saltiness, indicating that the refining was quite successful, but Song Xuan could always taste a bitter taste, although it was not as astringent as licking on the stone, but it has always been there, but it has reached the point where it can be accepted, and this salt should be feasible to eat with other things.

It may be a little more bitter than the one you got back, but the effect is actually not big.

Seeing Song Xuan close his eyes tightly, the corners of his mouth turned up for a while, and then frowned again, and the people around him who were struggling snakes also raised their hearts to their throats.

Finally, Shi Meng, who couldn't help it, leaned over and asked:

"Divine envoy, is it salt, what's the matter!"

It was only then that Song Xuan came back to his senses, handed the bowl that was not too hot to Shi Meng, and motioned for them to try it themselves, but there was only a very shallow layer at the bottom of the bowl, so many people must be unable to taste it, and it could only depend on who was faster.

By the time the bowl was handed to Shi Yu, it had already been scraped clean, and he could only look at Shi Meng and the others who had the same expression as Song Xuan just now.

Everyone didn't think too much about it, so they quickly opened their eyes and said excitedly to the people next to them:

"Well, it's salt!"

"How's it going?"

"Better than the tribe!"

As for the sentence that it is better than that of the tribe, this sentence is purely Shi Meng's personal feeling, although Song Xuan made it more delicate, but the taste is still a little worse than that of the Wuyu tribe.

It's similar to the one traded in the wolf tribe.

Seeing that the salt had really been refined, everyone was staring at the five cauldrons in front of them with burning eyes, hoping that the water in them would evaporate quickly.

Song Xuan didn't urge everyone to smash the stones, anyway, he couldn't be busy if he smashed too much, so it was better to let everyone witness the moment that was very important to Teng Snake.

Firewood is something that the tribe has never needed to feel sorry for, and here it is, too, out of the valley is a dense forest, and there is no shortage of wood in it, so the whole firepower has been kept at the maximum.

The shallow one-fifth pot of water had already bottomed out after boiling for half an hour, and Song Xuan also asked everyone to reduce the fire at this time to prevent the salt from being burned too much at once, looking at the white liquid that was still boiling in the pot, everyone was very excited.

At this time, he could already see that most of the salt had come out, but there was still a layer of water at the bottom of the pot, and as this layer of water also evaporated, the salt finally revealed his true face.

When I was in the bowl, it looked relatively white, but now it is estimated that there are more of them, and the salt is still a little bit of a faint cyan.

Of course, in this era, it is not easy to get that kind of snow-white salt, even if it is exchanged from the Wuyu tribe, it is a little yellowish, and it is estimated that there is a difference between collecting salt mines.

But fortunately, the color is very light, and it is not so obvious when spread out a little.

With excitement, Song Xuan asked Shi Meng to scrape off the salt from the other pots, which was only four fingers deep, so the salt at the bottom of the pot was only a very thin layer.

Gathered the salt from several pots together, and in the end it only filled half a bowl, that is, three or four taels, although the efficiency was not high, but Song Xuan did not seem too disappointed, after all, it was precipitated from the stone, and it was quite good to have this amount.

The salt from this pot of boiled water alone is enough for more than 100 people in the tribe to eat for a day or two.