In the governor's mansion, Sun Zikong sent all the tools he found to Chu Huan's study according to Chu Huan's instructions, the outer hall of the study was quite spacious, and Chu Huan was carefully checking the tools that Sun Zikong had found at this time.

When Sun Zikong came in from outside the courtyard, he was holding a very small cloth bag in his hand, and when he arrived at Chu Huan's side, Chu Huan had already turned his head to look at him and asked, "Did you bring it?" ”

Sun Zikong handed over the cloth bag, "Master, this is from the kitchen, and the salt used in the kitchen is like this." ”

Chu Huan took the cloth bag, opened it, and soon saw yellow-brown crystals appear in front of him, there were not many of them, Chu Huan pinched one and licked it with the tip of his tongue, the entrance was first salty, but in addition to the salty taste, it was also mixed with other strange tastes, which made Chu Huan frown.

"This is the salt we use on a daily basis?" Chu Huan looked at the yellow-brown crystals in the cloth bag, a little incredulous, "We eat these things every day?" ”

Sun Zikong didn't know why Chu Huan was so interested in salt today, so he nodded and said, "Master, this is the salt we eat every day, the salt in the kitchen, or Mrs. Su sent it over." Now there is a shortage of salt in Xiguan, and the kitchen also said that these salts must be used sparingly, unlike in the capital, there is no shortage of salt, so the taste of the dishes may be lighter...... They said that there was no way, they had been to the market, salt was not easy to buy, and the price was expensive, Mr. Du temporarily managed the account, according to the previous rules of the lady, the daily consumption of silver in the kitchen was strictly regulated, and it could not be used openly, and it used to buy a pound of salt in the capital, the same price, the price of salt here was five or six times higher, and there was no market...... So the kitchen can only save salt ......! ”

Chu Huan smiled bitterly: "I'm not saying that the kitchen is used more or less, I just ...... You just think the color and taste of this salt seem to be too bad, right? ”

Sun Zikong glanced twice at the cloth bag and said, "It's worse than the salt in the capital, but it's much better than other places...... Master, there aren't many people who can use this kind of salt now......! ”

Only then did Chu Huan hand the cloth bag back to his grandson, "Go back to the kitchen." Sun Zikong took the cloth bag and was about to leave, Chu Huan thought about it for a while, and finally said, "Don't leave yet." ”

"What else does the master command?"

Chu Huan pointed to a brown and white stone and said, "You carry a hammer and go to the yard to smash this stone, the smaller the better...... The finer the better......! ”

Sun Zikong saw that the stone weighed more than ten catties, and he found it according to Chu Huan's instructions, and said with some embarrassment: "Master, I'm ...... I don't have a lot of strength, I'm afraid it will take a while, if you are in a hurry, I'll look for someone with a lot of strength, and I will soon be able to smash this cold stone into a small stone ......! ”

Chu Huan waved his hand and said: "Let's not let others know about this, I trusted you, so I told you to do this, don't talk so much nonsense." ”

Seeing that Chu Huan looked very serious, Sun Zikong didn't dare to say much, went over and picked up the stone to the courtyard, and then went back to the house and picked up the big hammer, Chu Huan had already said: "The cold stone is not the same as ordinary rocks, it looks very strong, but it is much more fragile than the real rock, it is easy to break, you don't have to spend much effort ......!" ”

When Sun Zikong began to smash the cold stones in the courtyard, Chu Huan began to set up the hand-cranked stone mill that Sun Zikong had found in the house.

As Chu Huan said, the toughness of the cold stone is much more fragile than it seems, every time Sun Zikong smashes it down, it is a piece of gravel chips scattered, Chu Huan did not wait long, a piece of cold stone of ten catties, but also smashed by Sun Zikong to pieces, all small particles, with something to hold the gravel chips and send them to the house, I saw Chu Huan put all kinds of tools neatly.

Chu Huan looked very mysterious, and asked his grandson to go over and start grinding with a hand-cranked stone mill, while he poured the cold stone particles into the grinding eye.

Sun Zikong looked confused, if he didn't know that Chu Huan had always done things for a reason, he really thought that this was Chu Huan's prank, something was not easy to grind, so he had to find a stone to grind.

Soon, the brown stone powder slowly overflowed from the edge of the stone mill, Chu Huan collected it neatly with his hands and feet, and when he had collected almost the stone powder, he put all the stone powder into the wooden barrel prepared in advance.

When water is added to the barrel and stirred with a stick, the stone powder begins to melt into the water, and the water, which was originally clear, gradually changes color.

Chu Huan handed the wooden stick to Sun Zikong, asking him to continue stirring, and he pulled another wooden barrel in the past, this wooden barrel mouth was covered with a double layer of linen, Chu Huan made a look at Sun Zikong, Sun Zikong was also smart to put down the wooden stick, picked up the wooden bucket full of water, and poured the water quality of the barrel mixed with stone powder into the wooden barrel covered with linen.

Soon, the water in the bucket was poured clean, and the grandson was puzzled: "Master, let's ...... What are we doing here? ”

"Filtering." Chu Huan wrote lightly: "Remove the impurities inside......!" ”

Chu Huan's explanation, for Sun Zikong, is equivalent to saying in vain, Sun Zikong doesn't understand what the so-called impurities are, let alone why they need to be removed.

He just saw that on the sackcloth at the mouth of the barrel, there was an extra layer of gray-brown slag at this time, dense, all of which were residues, and saw that Chu Huan had already untied the sackcloth from the mouth of the barrel, and looked at the wooden barrel, and found that the color of the water in the barrel was already brown, much lighter than the previous color.

Chu Huan held his chin, as if he was talking to himself: "It's not enough, it still needs to be filtered, the impurities in it haven't been completely removed......!" ”

Sun Zikong could only follow Chu Huan, and filtered several times in a row, until finally there was almost no residue on the linen, and the water in the bucket gradually turned light red, the corners of Chu Huan's mouth flashed with a smile, and said, "Then it's time to detoxify...... If you don't detoxify, you can't eat it. He took a very large funnel that had been prepared a long time ago, and instructed Sun Zikong to smash the charcoal prepared in advance, and then put the charcoal grains into the sackcloth, which was tightly wrapped and stuffed into the funnel.

Sun Zikong saw that Chu Huan still had to use a funnel to filter, and couldn't help but say: "Master, this burlap wrapped in charcoal and put it in the funnel, and the inside is blocked, can it still be used?" ”

Chu Huan fixed the funnel on the shelf at this time, did not look back, carefully fixed it, and said softly: "What can't be passed is dross, what can be passed is the absolute essence......!" He looked into the wooden barrel, there was still more than half a bucket of water, and told Sun Zikong to put the clean wooden barrel that had not been used under the funnel, and then confessed to Sun Zikong: "The water in the bucket is poured into the funnel, this time the degree should be very slow, don't be in a hurry......!" ”

Sun Zikong tossed with Chu Huan for a long time, and he didn't know what he wanted to make up, listening to Chu Huan just now seems to say that if he doesn't detoxify, he can't eat it, and he was really a little surprised in his heart, and secretly wondered if Chu Huan was tinkering for a long time in order to make something that could be eaten, but this is a stone, no matter how you make it, it can't become food.

Sun Zikong carefully poured the already sticky solution from the bucket into the funnel, while Chu Huan squatted under the funnel, staring at the leak of the funnel, and after a while, the light red solution poured into the funnel from the bucket was filtered again by charcoal and linen, and the pale cyan solution flowed out of the leak.

Chu Huan breathed a sigh of relief.

He already knew at this time that if nothing else, his experiment would definitely be successful, and the pale cyan solution that flowed out at the end was what he had worked so hard to get.

After Sun Zikong's empty half bucket of water came down, there was no solution flowing out of the leak of the funnel, Chu Huan knew that the residue was all in the sack, and it was really blocked, so he had re-prepared a sack filled with charcoal and stuffed it into the funnel, this time Sun Zikong poured all the water from the bucket, and the wooden barrel under the funnel had also caught half a bucket of light cyan solution.

Chu Huan poked out a finger, stuck it on the solution, put it in his mouth, closed his eyes, as if he was tasting some delicious food, and soon the corners of his mouth curled, opened his eyes, stood up, and said, "You can make a stove ......!" ”

There was a stove prepared in the house, and a pot that was not too big was set on it, Sun Zikong hurriedly lit a fire, and Chu Huan poured the light cyan solution into the pot, then buckled the lid of the pot and ordered: "The fire can't be stopped, keep burning ......!" ”

Sun Zikong naturally didn't dare to disobey, sweat was already oozing from his forehead, Chu Huan stretched his waist, but he felt a little sour in his waist, knowing that it would take a long time to cook, and said: "You burn here first, you can't open the lid without my instructions...... Also, what we just did, even if you remember it in your head, don't publicize a word to the outside world for the time being, otherwise it will ......! Collecting it, he made a gesture of cutting off his head, Sun Zikong shuddered, but he felt that Chu Huan was making a fuss.

Sun Zikong didn't think that anyone was willing to try this kind of bizarre trick, and after a long time, he didn't know what the purpose was.

Chu Huan had already entered the study, closed the door of the study, and prepared to take advantage of the gap to practice the Dragon Elephant Sutra.

Chu Huan has broken through the third path of the "Dragon Elephant Sutra", and transformed the three paths of the eight veins of the Qi Sutra, Du Ren, and Chong, when he first practiced the "Dragon Elephant Sutra", Chu Huan did not know that the essence of this kind of martial arts is to transform the eight veins, and rebuild a physical body that ordinary people cannot compare with, and now that he has transformed the three veins, Chu Huan naturally understands what is going on, after Luo Duo helped him break through the Pure Land Dao and transform the Chong vein, Chu Huan has been starting to impact the fourth treasure elephant Dao.

The first three realms, qi training, bone refining, and skin training, Chu Huan knew their subtle benefits, and he wanted to know what kind of benefits he would get when he transformed the belt veins and broke through the Treasure Elephant Dao?

It's just that this is not an ordinary martial art after all, according to Luo Duo, it is really remarkable to be able to break through the three realms in less than two years, Chu Huan is also patient, although he never slacks off his martial arts cultivation as long as he has time, but it seems that he has no improvement in the "Dragon Elephant Sutra", and the cultivation of the "Dragon Elephant Sutra" does not seem to have made progress because of his hard work.