The discovery of table salt was of greater significance to Wang Tian than the success of pottery. It has been said that sweet things make people feel happy. In fact, the same is true of salty things.

Salt is the preservative of this era, and its emergence has made it possible to preserve food for a long time. In this era, food is everything, and the amount of food that a tribe can obtain can only reflect the ability of a tribe in a one-sided way. And how much safe food you have is the reliable cornerstone of a tribe's development.

Nowadays, when agricultural civilization has not yet developed, even wild fruits and plant stems are facing the problem of preservation. Not to mention perishable meat.

Now that salt has appeared, Wang Tian no longer has to worry about too much food and have sweet troubles, when the construction of the city is completed, he can come to a wave of crazy food reserve work.

Caught the fish _ marinated. Hunted to the animal _ pickled. Picked wild fruits_pickled...

Belch... This can't be had!

You don't have to worry about wasting precious salt, just store it with your food.

When the soup is boiled, a salted fish is thrown into the pot, then the meat is there, the salt is there, and the soup is there. What you need to consider is to pick a little more wild vegetables and put it in, it will be even more delicious.

After Wang Tian confirmed that the salt was discovered, he did not stop the work of painting the wall, the cave is close to the rock wall on the side of the viewing platform, and it is still being painted as usual, the reserves of table salt are so abundant, there is no need to dig the cave for this salt.

So he just had the painting of the side of the cave mountain stopped. And let the people who made the net rope first suspend their work, pick up any tools that can open the mountain and quarry, and mine against the rock wall of the cave.

Of course, all this was done after seeking the consent of the Son of Heaven, although the Son of Heaven did not understand the Son of Heaven's approach, but the experience told him again and again: "Believe in the Son of Heaven and get eternal life." ”

In fact, did Wang Tian not think of doing a lot of work, after all, this is a cave where the tribe lives. Before the fence was built, before the permanent solid man-made house was made. He wasn't going to destroy the tribe's only habitat.

After confirming that the mountain where the tribe was located was the Salt Mountain, Wang Tian just wanted to get some salt for the preservation of the food in front of him. And verify his method of extracting table salt.

After a crow-and-hammer thump of the tribesmen, a layer of removed rock salt stones had been piled up on the ground.

Find a basket to pick out the cave, weigh it on the viewing platform, and the total weight of rock salt is thousands of catties.

After that, it is arranged to be screened and divided into three categories: one is pure single-crystal salt, which Wang Tian called "rock sugar salt"; The other type is a transitional product mixed with rock sugar, table salt and rock salt skin. The third category is pure rock salt stones.

Wang Tian weighed and recorded the weight of each type of ore separately, and he was accumulating collected data to analyze the salt yield of each type of ore.

The production of table salt is the most important work at present, but the nitrate of the leather cannot be stopped, and the preliminary production work must be started. And with the start of salt boiling, the water consumption will undoubtedly increase. So the cistern on the left side of the tribe must also be completed.

After the work of collecting rock salt stopped, Wang Tian arranged for the second brother of King Kong to bring people to pick up river sand and pebbles from the river, and pick aquatic plants. The bottom is covered with river sand, paved with pebbles and planted with aquatic plants.

This allows the pool to be put into use as soon as possible, although the bottom surface and four sides of the pool have been tamped. However, the infusion of water still soaks the mud. With the covering and pressing of sand and pebbles, coupled with the purification and fastening of aquatic plants, the whole pool will not be covered with mud after taking water.

After arranging and preparing the infrastructure construction, Wang Tian began the salt production work. He washed all three of the tribe's soup pots, filled them with water and put them on the stove, two of which were lit by Fire 1 and Fire 2.

Then use a scale to weigh out 10 catties of each of the three types of ore. After the water is boiling, put a type of rock sugar salt directly into the pot to heat and dissolve. Then, through continuous boiling and stirring, when the water in the pot is heated and evaporated, a fine layer of salt powder is formed at the bottom of the soup pot, which is the fine salt we usually eat.

In order to ensure the service life of the soup pot clay pot, Wang Tian did not boil the salt directly in the soup pot to dry, but when there was still a certain amount of moisture, he removed the firewood under the stove. Then set aside and let it evaporate naturally.

For the second type of rock sugar and table salt containing impurities, Wang Tian first mashed and crushed the ore into powder and put it in a clay pot, stirred it with cold water and fully dissolved.

Then let the second brother cut off a few large-diameter bamboos, and open all the diaphragms in the middle of each one-meter-long bamboo, leaving only the bottom one. Drill three small holes evenly with a hand drill on it, and then add pebbles, coarse sand, fine sand, and bamboo charcoal to the bamboo tube in turn. The height of the filling material reaches 50 cm, half of the bamboo tube.

Such an original aqueous solution filter is ready. Then the prepared solution is poured into the bamboo tube for filtration, and the toxic and harmful substances will first be adsorbed by the bamboo charcoal, and the particle impurities in the solution will be filtered by the river sand.

The effect of the filter seems to be good, and after the turbid solution passes through the filter, it is already a clear and transparent table salt solution after flowing out of the three small holes at the bottom. Next, the fine salt can be extracted directly according to the previous method.

The refining method of the third type of soil rock salt is the same as that of the second type. It's just that it needs to be filtered multiple times. Wang Tian wanted to add preliminarily fired clay particles to the filter to enhance its ability to filter toxic and harmful substances.

Now bamboo charcoal has not been used, Wang Tian has replaced it with ordinary charcoal, and the clay particles can only be fired later. It's a big deal to filter it twice more, and the effect is the same.

After the complete volatilization of rock sugar salt, the salt boiled by the other two methods has also begun to recrystallize.

The tribesmen were amazed that the white salt had been boiled out of a pile of dirt, and the Son of Heaven was indeed able to spell spells, and could conjure snow-white "snow grains" from the muddy water.

Is this what the Son of Heaven said was a good thing? Is this the salt that makes delicious food? Thinking of food, everyone couldn't help blinking, saliva secreting in their hands, and their eyes locked on the salt at the bottom of the soup pot.

Wu and everyone else have the same mind, is this kind of salt, which is as white as snow, really as delicious as the Son of Heaven said? Wu put his hand into the stone pot, not afraid of the heat, grabbed a handful of salt and stuffed it into his mouth under the gaze of everyone in the tribe.

Wang Tian on the side couldn't stop it, and he had no choice but to give up with a crying and laughing face. Everyone stared at Wu's face tightly, and the intoxicated expression on his face after eating the delicious food did not appear, and after a second of Shiyan's entrance, Wu tried his best to close his mouth at first, but after two or three seconds, he still couldn't help but vomit.

Everyone was stunned, this was the second time Wu had vomited today, and I didn't know why I thought it was.

Wang Tian was in pain. "Boss salt isn't the way you eat it, right? It's no wonder that it tastes good like this! Wang Tian's heart hurt while thinking......