After listening to Shanhe's explanation, Jiang Nong nodded thoughtfully, silently reciting the words "isolation" and "protective layer" in his mouth. But it didn't take long for him to suddenly frown, and asked with a puzzled expression:

"Sanke, your method...... The old man has tried it before, but why doesn't it have the same effect as you?"

In the past 20 years, Jiang Nong has done countless experiments. Of course, he has tried this kind of internal breath protection method commonly used in alchemy, but the effect is not ideal, and it cannot be compared with the residual leaves taken out by Shanhe, so he immediately mentioned it.

"Huh, have you tried?"

"Of course, what do you think the old man has been doing for the past 20 years? Of course, this method has been tried, but the effect is not satisfactory. Y-How did you do that?"

Hearing that Jiang Nong had used this method but it had no effect, Shanhe frowned on the spot.

The internal breath protection method he used was given to him by the small bracelet, and it stands to reason that there is nothing special about it. Since he can achieve this effect, Jiang Nong should also be able to. Now Jiang Nong said that he couldn't try it, but it made Shanhe feel puzzled, and immediately asked about the bracelet in his heart.

After listening to Jiang Nong's statement, the little bracelet was actually confused and didn't understand the truth. But after a little thought, I guessed that this was probably related to the extraction method used by Shanhe.

It is very likely that the protective layer will only take effect when the healing and herbal extraction methods are used at the same time, and it will not be effective when used alone.

The speculation of the small bracelet, Shanhe also feels reasonable. But about the matter of the medicine extraction method, he couldn't tell Jiang Nong directly, and he thought about it for a long time before he opened his mouth to deal with it:

"Well, I don't know about this, but maybe, maybe it's because my inner protective layer is a little special. Hehe, anyway, after I tried it, it was still very useful!"

"It's strange! they all cover the leaf surface with internal breath, can the method be different?" Hearing this, Jiang Nong said in disbelief: "What's so special about your method? Who did you learn it from?"

"I learned from my old master. ”

"Oh, he can also do alchemy?"

"No, it won't. ”

"Then how could he teach you the Internal Breath Protection Method?"

"This, how do I know this, I will learn what the master teaches, how dare I ask him!"

"What's not to ask about that? After shaking his head angrily, he listened to Jiang Nong continue:

"Well, forget it, then what is the difference in your method?"

"My way...... Ahem, I'll talk to you about these details later. Since he hadn't thought about how to tell the story, Shanhe could only forcibly change the topic:

"I'd like to give you a brief update on how I'm going?"

Hearing that there was still "progress" behind him, Jiang Nong subconsciously glanced at the two lockets on the table that had not yet been opened, and asked expectantly:

"You mean, there's still progress?"

In order not to let the master and uncle get entangled in the method just now, Shanhe immediately nodded. casually opened the second jade box and poured it directly into Jiang Nong's hand:

"That's right! Five days ago, when the disciple was talking with Senior Brother Duan and Senior Sister Ye in Songbai Creek, he was inspired by the mention of a worldly delicacy, and then launched a series of new experiments......

With the sound of Shanhe's words, Jiang Nong only felt an itch in his palm, and a red residual leaf that seemed to have been torn off the edge and retained about two-thirds appeared in his palm.

Seeing a leaf of this size, Jiang Nong immediately stayed in place, forgot to close his mouth, stared at the red leaves in his palm with his eyes, and his heartbeat involuntarily sped up a little!

After about ten seconds, he woke up from the shock, looked down and sniffed the broken leaf in his hand, the familiar breath made his brain numb again, goosebumps all over his body like electricity, and he stammered in his mouth:

"You, you...... How have you done this, this way?"

Shanhe had long expected that the master would be shocked by this, and when he saw this scene, he only smiled slightly, and then opened his mouth to talk about his experimental process:

"The inspiration for the disciple's experiment came from a food called 'fried ice cream', I wonder if my uncle has ever eaten it?"

"Fried ice cream? no, no. ”

"Hehe, it's okay if you haven't eaten it, in fact, I haven't eaten it either. But after listening to Senior Brother Duan's description at that time, the disciple probably guessed the principle of making the food, so he had a bold conjecture......

In Sunward's view, there are two reasons why the ice cream can maintain its inherent taste under high temperature "frying": on the one hand, it must be isolated and protected by a certain substance, and on the other hand, because the temperature of the ice cream itself is very low, even if the outside temperature is high, it is difficult to melt all in a short time.

Therefore, as long as the duration of heating is controlled, the protective layer of the frozen form has a better thermal insulation effect than the internal breath.

So, with this line of thought, Shanhe began the experiment of the frozen layer without delay.

Not long ago, he asked Jiang Nong about the refrigerator, which is the reason.

Shanhe is not a complicated person, so it is very straightforward to start experimenting.

All the experiments are only two steps, first the broken leaves are frozen in water until they are frozen, and then they are taken out and started to be heated and refined.

The only difference in this experiment is the thickness of the ice.

In the selection of ice thickness, the mountains and rivers have made strict control, the thinnest is only one or two millimeters, and the thickest can reach two or three centimeters, trying to find the best solution.

The experiment of isolating the broken leaves with ice took half a day to complete all the mountains and rivers.

Later, in order to compare the results, he combined the internal breath protection method with the ice isolation method to do several experiments, but the final result was not ideal.

After hearing the words "not ideal", Jiang Nong's expression immediately became nervous, and he took Shanhe's arm and asked eagerly:

"Why isn't it ideal? What the hell is going on? And where does this leaf come from?"

Shanhe first drank a big sip of tea, and then continued to preach with a frown:

"The amount of heat absorbed by the ice layer used to protect the broken leaves when it sublimates at high temperatures really surprised the disciples, and its heat-absorbing effect far exceeded expectations, and even a bit of a reversal. After several experiments, the disciple found that once the thickness of the ice exceeded 5 mm, even if the temperature of my palm reached 420 degrees, the broken leaves that could be wrapped in ice would not be activated due to lack of heat. Only by adjusting the ice layer below 5 mm can there be any hope of activating the void breaker. ”

"Oh, it turns out that wrapping in ice also has this problem...... And what about later?"

Later, the disciple did a batch of ice tests below 5 millimeters. Shanhe replied with a regretful face:

"But because the ice is so thin, it evaporates very quickly in the heat. Sometimes after a puff of white smoke, the ice is gone, and the broken leaves will lose their protection and turn into ashes, and the timing of temperature control and leaf removal is really difficult to grasp!