"This…"
Li Er was a little unconvinced. He strode over and pushed Cheng Yaojin away. He picked up a spoon and ate it.
It was thick and oily with a hint of sweetness. It was indeed the taste of the corn he had eaten yesterday!
"How, how can corn be boiled into oil?”
Li Er felt that his understanding of life had been ruthlessly destroyed. He looked at Qin Feng in disbelief.
He had seen and eaten corn before, but he had never thought that it could be boiled into oil!
Other than suet oil, there was basically no other oil that could be seen and used in the Great Tang.
Why?
Animals like pigs were despised by the people of the Tang Empire. They were considered filthy and would not be served on the dining table, let alone eaten with pork fat.
There was very little fat in chickens and ducks, so sheep was the most common food for the people of the Great Tang and was a frequent guest at the tables of the powerful.
As for the vegetable oil, they could forget about it. How would they know how to extract it?
Therefore, Li Er subconsciously thought that it was all mutton fat. It was not his fault. It was this era that limited his thinking.
"The world is so big that there are all kinds of strange things. It limits your subjective cognition. It's this thing. Don't be arrogant and think that everything in the world is in your eyes.”
Qin Feng pointed at his head and spoke earnestly.
Li Er's face suddenly turned red. He failed to pretend and was scolded instead. He wanted to hide in the crack in the ground and be quiet.
Qin Feng's words sounded like an elder lecturing a junior. Li Er felt uncomfortable in his heart but he couldn't refute it.
This fellow was flexible. He could even tolerate Wei Zheng and the other remonstrants pointing at his nose and scolding him.
What he said made sense, and Li Er was convinced. This was the most praiseworthy advantage of him.
"Young Master Qin, then why is it that when so much oil is mixed together, it will appear like this lump?”
Fang Xuanling also walked over with a surprised expression and spoke politely.
Towards Qin Feng's great talent, he was shocked and astonished. In his heart, he wanted to learn more and take this technique into his pocket.
Li Er looked over again. He was also very eager to know the principle behind it.
"You won't understand."
Unexpectedly, Qin Feng directly waved his hand, indicating that this group of illiterate people could not understand.
"This…"
Fang Xuanling's expression changed slightly, and he said unhappily,"
"Young Master Qin's words are a little too much. As long as you tell us the principle, how could we not understand?”
Li Er also nodded. It was fine that he was mocked by Qin Feng just now. This fellow had a good mentality. At this moment, he felt that he was still awesome.
You don't understand the principle?
Hehe, Li Er didn't believe that he was so stupid. Old Demoness Cheng picked her nose and chose to ignore it. Anyway, she didn't understand.
"Alright, then I'll explain it in detail.”
"Hehe, you said it. I can do it myself later!”
Li Er's confidence came from nowhere. Qin Feng nodded and immediately pointed at the raw materials and explained,
"This is sheep oil, followed by sheep bone oil, then pig oil, pig bone oil, vegetable oil, corn oil…spices.”
"Then, this is the base, extracted from plant ash. The principle of making soap is that the base and oil undergo a neutralizing reaction, boiling and condensing into a solid.”
"Then, why do you need to add so many types of oil?”
"Because if it's just animal oil, the saturated fatty acid content is high, and the soap is too hard, it's harmful to clothes and the body.”
"If it's just vegetable oil, the content of fatty acid is high, and the soap is too soft to form, so it needs to be neutralized.”
"Spices are just to add flavor and have no other use. After explaining, how much do you understand?”
After saying that, Qin Feng looked at Li Er and Fang Xuanling with a smile.
The two of them opened their mouths wide and their eyeballs popped out. Cheng Yaojin, who was beside them, scratched his head and asked subconsciously.
"Old Master, can we do it when we go home? Old Cheng also wants to ask you to do something…"
"Get lost!"
Li Er flew into a rage out of humiliation and kicked Cheng Yaojin away. The latter rolled his eyes and pulled Fang Xuanling.
"Old Fang, could it be that you don't understand like me?”
"You!"
Fang Xuanling's face turned the color of a pig's liver. He pushed Cheng Yaojin away and said,"
"You idiot, don't compare yourself to me!!”
"Hahaha…"
Cheng Yaojin felt as if he had discovered a huge secret. He laughed so hard that he almost lost his mind. It turned out that he was not the only one who was stupid.
Good luck. In the future, whoever dares to laugh at me for being a fool, I'll bring him to Qin Feng and beat him to death!
"Sigh…"
Qin Feng sighed and patted Li Er's shoulder.
"It's not that I don't want to teach you. I just said that you don't understand, so why struggle?”
Li Er's face was flushed red. He felt that he had lost his face today. He was extremely angry and had the urge to order someone to beat up this smiling bastard in front of him.
……
After a while, in the thatched cottage in the village, Qin Feng was brewing tea with a smile on his face. Seeing that Li Er and Fang Xuanling's faces were still dark, he couldn't help but say,
"Why are you frowning? Don't tell me you have some prejudice against me? I just didn't understand. Why don't I explain it in detail next time?”
"Ahem…"
Fang Xuanling wanted to draw a circle and curse Qin Feng. This fellow was too much of a blow. How could he mock people like this?
"Young Master Qin, I have thought about it carefully. Why have I never heard of that knowledge of yours?”
As the representative of the Good Mentality Realm, Li Er had already recovered. He could not help but look at Qin Feng to ask about the main points.
This fellow was very serious now. He felt that he valued something that he really didn't understand.
Qin Feng naturally had a way to deal with this. He looked at Li Er and said,
"When a child is born, can he walk?”
"Of course not!"
"Then do you know how to read, write, ride a horse, and draw a bow?”
"Of course not!"
"Then why did you learn it later?"
"Naturally, I learned it!"
"Isn't that right? Then why did you ask me this question?”
Qin Feng rolled his eyes at Li Er. The latter immediately became embarrassed and could not help but say,
" But this knowledge is unprecedented. Why did you…"
"Isn't it pleasing to learn from Confucius? Do you know that you need to review your studies often?”
"When Master Zeng mentioned that I should reflect on myself three times a day, do you know how to reflect on myself three times a day?”
"Before Shennong tasted the herbs, do you know which herbs can cure you?”
Qin Feng looked at Li Er and said seriously,
"So many seniors and saints have told us that the path is created by walking. Knowledge is created by wisdom. Reading ten thousand books is not as good as walking ten thousand miles.”
"If you find it strange, there are only two possibilities.”
"Which two?"
Li Er hurriedly asked. Qin Feng coughed dryly and picked up the teapot to fill it up. He said,
"This might be a little offensive. Forget it, come and have some tea.”
"Now that you and I are scholars, how can there be any offense!”
Li Er looked unusually anxious.
"Really? Don't get angry again later and say that I'm mocking you.”
"Cough cough…I'm not such a petty person, just say it!”
Qin Feng nodded. He first pointed to his hand and said,
"Well, either his limbs are simple and he doesn't know how to practice…"
As he said that, Qin Feng pointed at his own head and said,
"Either this place is stupid, understanding the world is knowledge, and understanding human relations is an article. I think these are simple, but you don't understand them thoroughly.”
"No matter what the situation is, I think it's better to admit it.”
This book is provided by FunNovel Novel Book | Fan Fiction Novel [Beautiful Free Novel Book]