The thin man's face immediately changed when he saw Su Yun walking over carelessly. Just as he was about to protect the cardboard box with his body, he noticed a sense of suspension coming from the air.

"Don't move." Fan Tianshui took his collar and pulled the person up effortlessly.

The collar strangled his neck, and before the thin man could react, his body had been shifted for more than a meter, and then he was steadily put down by Fan Tianshui.

The thin man's face looked ugly. Where did this man in a security uniform come from? He is so fierce! When he just picked up his arms, he seemed to be flat, and he didn't even bend.

"Brothers, we..." The thin man wanted to explain a few words, but in a flash he saw that the box had been opened and the brass plate was taken out by a young man who looked honest.

"It doesn't look like I just cleaned it." Zheng Ren said with his fingers sliding across the brass plate.

"Impossible, how could I use this kind of thing for students?" Su Yun said, "Students usually use stainless steel, which is for leaders."

Hearing this sentence, the thin man burst into tears. This person looked unreasonable, but he actually understood.

"It's not about tableware, where is the faucet?" Zheng Ren asked.

The thin man immediately replied: "This, our faucets are all high-quality 304 stainless steel faucets..."

"It shouldn't be." Su Yun looked around and said, "All pure copper faucets have electroplating on the outermost layer. The purpose of electroplating is to prevent the internal brass corrosion and rust. The kitchen smoke is very large, and the greasy and detergent on hands when washing dishes, so you often need to clean the faucet."

"Yes, yes, if you don't use the correct method to clean it, it is very likely to damage the electroplating layer of the faucet, causing the faucet to be corroded and rusted." The thin man, regardless of whether anyone cares about him, immediately said: "Only those petty bourgeois pretending to be decorated with copper faucets, we all use stainless steel."

"The steel faucet does not require electroplating and is extremely unlikely to rust. The hardness and toughness are more than twice as high as copper products, so it is very convenient to clean. I think the kitchen uses this kind of thing, without copper exposure."

After Su Yun finished speaking, he walked to the place where the rice was stored next to him.

"It's okay, the rice is about to expire, but it has not expired yet." Su Yun said, finding the label, "It's not a fake production date."

Zheng Ren took out the brass plates in the cardboard box and looked carefully, his eyes narrowed, as if he was thinking about something.

"The vegetables are a little wilted, but they are not moldy," Su Yun said, "Let's wait for the people from the CDC to take samples."

"It has nothing to do with these. What vegetables absorb more copper?" Zheng Ren murmured.

"I've gone too much, but if it weren't for the little content of the vegetables growing on the copper vein, it wouldn't lead to acute poisoning." Su Yun said, "Boss, you overestimate the school cafeteria. Why do you only use fresh food for each meal here? You must have a batch of goods for one week. Look at the food, it's not the first day of eating today."

"No, we will take 2 days!" the thin man defended.

Su Yun didn't even look at him, so he came to the refrigerator, opened it and took out the meat inside and took a look.

"It's quick-frozen, not fresh, but not bad."

"Our meat is from a big manor..." the lean man defended.

But no one paid attention to anything he said. Zheng Ren and Su Yun looked around, Fan Tianshui suppressed the audience, and no one dared to move for a moment.

Lin Ge saw Boss Zheng and Su Yun searching all the way with sterile gloves, and smiled bitterly in his heart. Why bother?

To be nice, this is called a childlike heart, to be ugly, this is called a cat using rats to meddle in other people's business. That is, it means that it has great ability. If it were a little smaller, it would have been killed by people like this.

More than ten minutes later, people from the branch and the health bureau arrived one after another, but Zheng Ren and Su Yun did not get any gains.

The CDC took samples and went back to check. Su Yun looked at the thin man in confusion and asked, "I didn't see any big deal. Why are you so nervous?"

The thin man was stunned for a moment, then said with a sad face, "There is no kitchen that can't be found wrong. If we don't talk about the kitchen of the school, it's not normal to see a cockroach in our own kitchen."

"What then?" Su Yun asked.

"You guy, don't interrupt me. Let me tell you the truth. We don't make money from the students' meal expenses." The thin man said, "The school has subsidies, and we mainly earn the subsidy. It's hard to make some money now. I don't know how many eyes are staring at the contracted cafeteria. If you accidentally report it directly with your real name, my brother-in-law..."

As he said that, he realized that he had missed his mouth.

"Haha, it's okay." Su Yun said with a smile: "Will you not cause trouble for your brother-in-law?"

"It's also worth earning less, after all, there are subsidies. I still have hundreds of hectares of land outside, which is also contracted. Generally, in the past fewer than food, I don't make money, mainly because I earn state subsidies." said the thin man.

"Brother, you are not short of money, big landlord! Why are you still here to contract the cafeteria?"

"..." The thin man closed his mouth.

"This money is easy to make. I know if you don't say it, and the school gives me how much subsidy it gives." Su Yun muttered to himself while searching everywhere.

There were no copper utensils in the entire kitchen, so I searched for a long time without any clues.

Su Yun was too lazy to chat with the thin man, so he looked around with his boss again. Seeing that the CDC was taking samples and preparing to go back for testing, he bumped Zheng Ren with his shoulder, "Boss, go out to smoke a cigarette?"

Zheng Ren frowned and nodded.

"Chief Lin, I'll leave it to you here." Su Yun said casually.

Lingge sighed, these two masters really can't afford to offend them. Follow the normal process... forget it, don't talk about the normal process, as long as they are happy.

Fan Tianshui was also very conscientious when he didn't hit him, and Director Lin was quite satisfied.

Zheng Ren was also very confused. The students were sure of copper poisoning. The system panel of the Big Pig's hoof and the laboratory tests in the 912 laboratory proved this.

When they left, the students' system panels began to undergo subtle changes. The reason why the change was not big was that the drug was injected through the gastric tube, which only played a relief role. The real treatment was to give dithiothio sodium dithiothioate intravenously.

Walking out slowly, Zheng Ren pondered all the way to where the problem lies.

It's really weird. The collective copper poisoning incident that happened after dinner in the cafeteria was originally clear, but Zheng Ren thought that as long as he came here, he could find out the problem immediately and solve it directly.

Moreover, the principal of No. 2 Middle School was too obvious, and all this pointed to the big problems in the school cafeteria.

But... there is nothing wrong with the canteen, so you can't say it's good, but you can't say it's bad. If it's bad, then the standards will be too strict, or even strict.
Chapter completed!