During this period of time, Song Xuan made a lot of pottery specially prepared for refining salt.

These pots are wide and large, and they can last up to four or five mouthfuls, and are perfect for finally evaporating the water in the brine.

At the same time, the clay jar with a water outlet in the lower part was also made, but because of its relatively large size and relatively troublesome production, only three mouthfuls were made, but it was more than enough to refine the salt needed in the tribe.

There are also bluestone rods for grinding salt ore, as well as various hammers and chisels, and some are also polished in the tribe.

The most important thing is naturally the filtration equipment, which has also been changed to a large pottery, which is much thicker than the previous bamboo tube, and according to Song Xuan's requirements, the top is funnel-shaped, and there is an oblique downward water outlet below, which can directly flow the filtered water into the pottery jar below.

Naturally, the filtration is still based on bamboo charcoal, there is not enough cloth in the tribe, Song Xuan can only use the hair of the beast as a preliminary filter, in order to be able to see the impurities inside, most of the hair selected is also white, and after repeated washing, at least it can ensure that there must be no other dirty things on it.

As long as this set of equipment is placed well, it can still save a lot of manpower.

Although there is a lot of equipment, it is not so easy to move these things over, especially since each cauldron is seventy or eighty centimeters wide, although it is a little shallower than the pot for eating, but it is still several times heavier in weight.

It is almost impossible to carry it on his shoulders, and if two people carry it, it will not be easy to walk in the forest, so Song Xuan can only find a way to let everyone tie it up with animal skins and carry it behind him.

Fortunately, everyone's strength is relatively large, this dozens of pounds of things, did not have much impact on the action, but the speed is a little slower, this time in addition to the basic food, other things are not too much to carry, even if it is a weapon, one person also brought one or two of the most handy.

Everyone has large and small pieces on them, and there is really no extra place to put other sundries, even Song Xuan has several filter cartridges on his back.

Fortunately, the distance was not too far, and in the afternoon everyone had already arrived in the valley, and the first task was not to refine the salt, but to put these jars and jars on their backs in the right places, so after putting down their equipment, everyone went out to look for stones.

Whether it is a pot, or a filter barrel, or even the base of the grinding rock ore requires a lot of large stones, fortunately, this is in the mountains, and this is also a valley, stones are not uncommon, but this huge stone is a little difficult to move.

But if the stone is too small, everyone is not at ease, especially if the pot is used, once it collapses or breaks, the pot on it may fall down and smash it directly.

However, there is still a lot of experience in dealing with these stones, and in addition to moving them back directly, the people who Teng Snake will also use a very traditional method to make them crack directly.

And the concept is quite advanced, we first put a lot of dry firewood around the stone, and then ignite the fire to burn violently, so that the temperature of the stone rises rapidly, and when it burns about the same, then a basin of cold water is poured over, and the stone cracks directly under the violent alternation of cold and heat.

Fortunately, a large amount of firewood was prepared before, and it was stacked under the shed, and now it is completely dry, just enough to use it directly, and it is relatively convenient to get water, from a small waterhole to the mouth of the valley, that is, a distance of one or two hundred meters.

The small ditch that had been dug last time was not blocked, but showed signs of gradually expanding, and the water flowing down from the mountain was obviously larger than it had been at the beginning.

The current depression is already full of water, and it can be called a waterhole, but the area is slightly smaller, only about 20 square meters, and the deepest part of the water is less than one meter.

However, with a steady stream of living water, it is not a problem to meet everyone's consumption, and it is unlikely that this pool of water will be used dry.

The two of them carried the water to the cliff wall with a large basin, and then hung it down directly with a rope, the height of seven or eight meters was not too difficult, just a little troublesome, but this could also avoid letting the two climb up and down, and it was still a lot easier than this.

Song Xuan originally wanted to solve the problem of water at one time, but this time he really couldn't free up manpower, a bamboo of this length needed at least two people to carry it, and the manpower was really not enough.

But it's not particularly troublesome, at most this time, and the next time I come back will definitely be able to make this place even better.

I was busy until dark, and I didn't bring back the stones I walked on, but it was enough to set up a pot and build a few stone platforms to put other things on.

Evaporate water with a pot, after all, it is the last step, there is still a lot of time to get it slowly tomorrow, as long as the previous steps are completed, you don't have to worry too much, you have to free up a few people, you can set up the pot, but the speed is a little slower.

This time the division of labor was quite clear, the men were mainly responsible for smashing the stones down, and at the same time smashing them into smaller stones, which were then transported to the women's side, and the women were responsible for breaking the small stones into more pieces, and then grinding them into a fine powder with bluestone rods.

There are three or four people in each step at the same time, as if an assembly line has been formed, and Song Xuan is mainly taking two people to dissolve and filter the rock ore that has been ground into powder.

This step is a little more troublesome, after all, it has to be poured back and forth, and filtered several times to ensure the quality of the final refined salt.

Moreover, the clay jar must be cleaned every interval for a period of time, so that the large impurities deposited in it can not affect the water outlet, otherwise the precipitation will not be meaningful.

This time Song Xuan also changed the way of dissolving, the last time it was heated while stirring, this time it was directly used, the hot water that was boiling hot, although it was a little troublesome, but there was no need to build a stove on both sides, and it was actually faster to filter water here and boil water there, in fact, it was faster in terms of efficiency.

Most of the time you can directly use boiling water, before you can only ensure a relatively hot temperature, it is difficult to wait until it boils, now put the rock ore powder in, pour a lot of hot water in it, and then wait for the water to cool down slowly, when it is almost cold, the impurities have basically precipitated to the bottom, at this time, it is good to release the water directly, and the higher the temperature can also make the salt in it more fully dissolved.

There is no cloth that can be filtered, so only the most primitive precipitation method can be taken, although the speed is slower, but the effect is quite good, the initial precipitation can be obvious particles to be sieved out, at least from the naked eye, the back of the treatment is basically only slightly turbid salt water.

After many adsorptions of bamboo charcoal, the brine will become clearer and clearer, filtered four or five times, and then poured directly into the evaporation cauldron, and then boiled directly on the fire.

Because soon new brine will be added, and if the filtration speed is slower, there is even a delicate balance between the two, evaporating one jar of water here and filtering out one jar of water on the other.

However, after all five pots are put on the shelves, the filtration speed is a little too fast to catch up, even if two of them are used to boil water, the water and brine in the other three cauldrons are slowly decreasing.

At the end of the day, a layer of white salt can already be seen at the bottom of the cauldron, although it is not too thick, but you must know that the caliber of the pot is not small, and the three pots add up, four or five catties are still available.

Although everyone was a little excited when they looked at the salt, Song Xuan didn't let them scrape off the salt, because they had to continue refining it later, so it was better to put it in it, wait for the last refining to be completed, and collect it again at once, although it may be a little hard to endure in the early stage, but when they think of leaving, they can scrape out dozens of catties at once, and everyone has some faint expectations.

At night, a few bonfires were lit around the shed, and everyone slept directly in the wild, fortunately, there was no trace of wild beasts in this valley, after the previous group of goats was eliminated, Song Xuan did not find any wild beasts coming over these two times, I don't know if it was alarmed or what.

All kinds of tools are specially built, so everyone's efficiency has also improved a lot, now more than 20 people are in full swing, and they can basically refine seven or eight catties of salt a day, although the number is not much, but Teng Snake eats more than half a catty a day at most, even if you add cured meat, the average day is more than a catty, which is enough for six or seven days in the tribe.

Since they knew that the salt mines had been discovered in the tribe, everyone used the salt, and they didn't have the previous buckles and ropes, and they all went big.

In the past, when I cooked, I only needed a little salt in the soup, but now the flavor is much stronger, but it is not without benefits, at least it will taste a little more delicious.

It was also a helpless move to use it so carefully before, after all, the price is relatively expensive, and everyone is a little distressed to use, but now there is no such concern at all.

In addition to the daily consumption of food and drink, the big head is still on top of the preservation of meat, at most a little salt on the surface of the meaning, now it will be thoroughly smeared, although in the end the dry salt will be cut off and reused, but the use is indeed several times more than before.

After the salt enters the meat, it is still good for the preservation of the meat, at least it will not be so easy to spoil, and when you take it out to eat later, the taste will be better, especially when they go out like Shi Meng, if the meat has a salty taste, people will not only be comfortable to eat, but if they are busy, they don't have to think about using additional salt water to supplement the salt in the body.

Now in this weather, chasing and running outside, you still have to ensure that there is enough salt in your body.