Xu Zheng turned his head and saw an old man standing at the door, looking at him with sparkling eyes and eagerness. The old man was thin and in good spirits, and had the authentic mark of a good drinker—a large red sprinkling nose. There is no need to guess, this old man must be the person Xu Zheng is looking for, the grandfather of Little Banga, the fifth-level brewer Old Banga Rushel.

Old Banga went out to visit friends, and he was supposed to stay for a day before returning, but he remembered the citrus wine he had brewed on a whim, so he moved forward by a day. When I stepped through the door, I heard little Banga and a teenager discussing the issue of citrus wine. Originally, Lao Banga didn't care, just imagine, he did it first, and someone came to the door to make a big fuss, devaluing what he created to nothing, this kind of person must be driven like a fly. I was about to ask the housekeeper to drive people away, and the young man's talk came to my ears, and the more I listened, the more frightened I became!

You know, to create something, you will definitely encounter problems in the whole process. And every question that the boy said was exactly the headache that the old Banga encountered in the process of making sake. It was hard to believe that the problems encountered by a fifth-level brewer had not only been pointed out by this young man, but he had also made sure that he had said everything in detail and concretely. Hearing the young man say that there was a way to improve the taste of the wine, the old man was shocked to the extreme.

Is there really a way to improve it as he said? If it is true, then the entire imperial capital will cause a shock! Think about it, what does it mean to improve the quality of the liquor after fermentation? No one knows better than Lao Banga, a fifth-level brewer around him.

So when he heard that Xiao Bangjia was angry and wanted to drive people away, Lao Banga finally couldn't bear it, raised his voice to stop his grandson, and said loudly: "100 wine koji, plus another 100 gold coins!

Xu Zheng looked at the old man and said, "Really?"

The old man strode over, looked at Xu Zheng eagerly, and said, "I don't care if you brag or talk big, as long as you can prove it to be true, 100 koji and 100 gold coins are trivial, and you can take whatever you like with the things in my house!"

Angel said in surprise: "Xu Zheng, 100 gold coins!" The big and small classes also looked at Xu Zheng, excited and inexplicable. Even Ruki couldn't help but start thinking that if she could have 100 gold coins, she could buy a sword and shield, or some other equipment.

Xiao Bang hurried: "Grandpa, maybe he's a liar!"

Old Banga shook his hand, didn't let his grandson speak, and looked at Xu Zheng.

Xu Zheng smiled slightly and said, "Please bring a bowl." In front of the elderly, Xu Zheng immediately spoke a lot more politely, which was the result of his many years of influence in oriental thought, and he has always respected the elderly.

"Little Banga. Go get the bowl. ”

Xiao Bangjia glared at Xu Zheng, and then reluctantly took the bowl.

Taking advantage of this opportunity, when people were not paying attention, Xu Zheng stretched out his hand and touched something in his personal space, broke a small piece and put it in his arms.

Xiao Banga quickly came back with the bowl, Xu Zheng took the bowl, reached out and scooped a bowl in the wine vat, then took out the things in his arms, and said, "The secret decision is here." ”

Lao Bangjia fixed his eyes and saw that Xu Zheng was holding a small inconspicuous stone in his hand. I couldn't help but wonder, what use can a stone be? But Xu Zheng had a calm and relaxed expression, not like a fake, and couldn't help asking, "What is the purpose of this stone?" ”

Xu Zheng handed the stone to Lao Bangjia and said, "Please take a look." ”

Old Banga took it in his hand and looked at it carefully. I saw that this stone was the size of a big toe, but it felt very light in the hand, and it seemed to have a very loose texture. If you look closely, you can see that there are many fine grooves and small holes in the stone, and when you touch it by hand, it feels lighter, as if the inside of it is also this structure, so it makes its weight appear very light.

"What's the use?" asked Old Banga, puzzled. The others also looked at the small stone in Lao Banga's hand, and showed puzzled expressions.

Xu Zheng explained: "This kind of stone, I call it pumice. The structure is scattered, and there are many hollow holes and grooves on the surface and inside, which are fragile and crackable as a whole. Generally speaking, it cannot be used as a building material, so many people tend to ignore it. In fact, it really doesn't have much use either. But it's no better to use it as a filter for winemaking. No matter which tool is used for filtration, it cannot achieve its fine filtration effect. Moreover, it does not dissolve on its own, and it has no taste, so there is no need to worry about new impurities and odors. You see. As he spoke, he threw the pumice stone into the bowl.

As soon as the pumice stone was thrown into the bowl, many bubbles immediately began to bubble up. The whole pumice stone floats on the surface of the wine and does not sink. Then, as if by a miracle, the whole bowl began to become clear and transparent at a speed visible to the naked eye, the dark brown color began to fade, and the orange-red color of the citrus juice began to slowly appear. After a while, the pumice stone floated a few times on the surface of the wine before swaying to the bottom of the bowl. At this time, the color of the pumice stone changes to dark brown, but the color of the wine becomes clear and transparent, and the shape and color have improved a lot.

Xu Zheng said: "Little Banga, bring another bowl." ”

This time, little Banga ran quickly and took the bowl.

Xu Zheng poured the wine into the bowl that Xiao Bang brought for the second time, leaving only the pumice stone and some residue that had sunk to the bottom of the bowl after absorbing it was full. The second bowl is full of orange-yellow wine that has been treated and looks crystal clear.

Handing the bowl to Angel, who had tasted the unprocessed raw liquor, Xu Zheng said, "Taste it again." ”

Angel took a sip and raised his eyebrows, saying, "Quite delicious! The citrus flavor is distinct, much better than just now." ”

Looking at the whole magical transformation process, Lao Banga was a little uncontrollable in his excitement, and hurriedly took the bowl, took a big sip, and suddenly widened his eyes. Is this the citrus liquor that he thinks is going to fail? No one knows better than him what he makes in the first place. Not to mention how much the sprinkling has been improved in terms of shape and color, in terms of taste, after this one, the original sour and bitter taste has gone a lot, and it has been obvious that you can taste the sweet and sour taste of citrus. It can be said that this step of pumice stone treatment definitely has the effect of turning decay into magic. If the brewing is complete, it goes through this step...... Well, the end result can be imagined!

Thinking of this, Old Banga couldn't help but mutter, "It's amazing, it's amazing!"

Xu Zheng looked at everyone's convincing expressions with satisfaction, blinked proudly, and said openly: "I can make wine." Of course I know what to do. ”

In fact, this stone was discovered by Xu Zheng in the vast forest. At that time, I thought it was interesting, so I collected some, anyway, with the improvement of his Heavenly Dao Technique, the volume of his personal space continued to increase, and he didn't care about the little space it occupied. Later, I found that in the process of refining, I could use its adsorption to absorb the impurities in the metal liquid, so I deliberately collected some of them. I didn't think that it would not come in handy, but this time I saw that the wine of Lao Banga was very impurities, so I thought about it and took it out and tried it and succeeded.

Because he knew an excellent method of purifying liquor, Lao Banga was extremely happy, and said to Xiao Banga happily: "Go and get 100 koji and 100 gold coins and give them to this one——" Only then did he remember that he didn't know people's names at all, and his old face turned red and asked, "May I ask Your Excellency's name?"

Xu Zheng was stunned, and even the honorific title of Your Excellency came out...... Sweating. Hurriedly said: "Don't be like this, just call me Xu Zheng." ”

In a short time, 100 koji and 100 gold coins were in hand. Angel and the others stared at the gold coins in Xu Zheng's hands, they couldn't believe that 100 gold coins came so easily. Seeing that Xu Zheng put the money into his arms, the eyes of several guys also followed the gold coins and ran straight to the place where the gold coins on Xu Zheng's chest disappeared.

Seeing Xu Zheng take over the things, Lao Banga couldn't help but ask, "Where can I find this kind of pumice stone?"

Xu Zheng said: "In the mountains." Much more. "It's true, there are so many of these things in the vast forest and sea that there are mountains all over the mountain. I don't know what kind of orogeny the mountains in the vast forest sea are formed by, but there are many such stones anyway.

Seeing Xu Zheng's casual expression, Lao Bangjia only said that this young man was perfunctory. Just imagine, where can you easily talk about your own unique skills? Like yourself, as a fifth-level brewer in the imperial capital, he never talked about brewing skills with the other two fifth-level brewers. At the moment, I was embarrassed to ask again, and I could only comfort myself with my old face, and I could only comfort myself: I finally knew this unique method, and the harvest was already very great.

Just thinking like this, Xu Zheng came up with a few words that made him listen to the words that were about to spurt blood: "There are no pumice stones near the imperial capital? It doesn't matter, I know that other materials can be replaced." Actually, it's not the best way to do it. This is just one of many methods. I have a few other ways to do it, and it will work better depending on the brewing period. ”

Are there any other alternatives? Old Banga's two old eyes immediately widened. Listening to these few words, Lao Bangjia was itching, and he only hoped that Xu Zheng could say the method immediately. It's hateful that the person concerned didn't pay attention, so he said it casually, and he had enough appetite but no follow-up, and he only grabbed the money bag and stuffed it into his arms. How can I find out about the alternative materials of pumice stone? Moreover, Lao Bangjia was also extremely concerned about Xu Zheng's so-called other methods, and for a while he was only anxious to sweat on his forehead, anxiously thinking about how to keep this young man, or find out how to find a way from his mouth.

PS：

I don't know why, but I especially like the main character of pretending to be a pig eating an elephant or the scene of pretending to be a pig eating an elephant. We are working hard to create a sunshine boy with a black belly. Rattle~