Sea-hunting: With the system in hand, my eyes are the ruler

Jiang Han pushed open Zhang Haidai's door and saw Zhang Haidai banging his head against the wall.

"Hey, what are you doing?"

"Brother Han, I'm really stupid. I can't even memorize such a small thing."

Jiang Han had never realized the concept of talent before. He thought his good grades were because he worked hard.

Seeing how hard Zhang Haidai worked but still couldn't memorize it, he felt that talent might really exist.

He took a look at what Zhang Haidai was carrying.

"is it hard?"

"Disaster."

Jiang Han: "..."

He really thought that he could memorize these few lines of words after reading them once or twice.

"You don't have to be so anxious. If you really can't pass the test, we won't take it."

"How can this be possible!" Zhang Haidai wanted to help Brother Han the most. If he couldn't even get a boat driver's license, how could he do more for Brother Han?

"Why don't we find a way?" Seeing that Zhang Haidai insisted, Jiang Han could only encourage him.

He marked those lines and explained them to Zhang Haidai.

Zhang Haidai was stunned. After Jiang Han’s explanation, it seemed much easier for him to memorize.

"Brother Han, you are so amazing. If you were my teacher when I was studying, my grades would definitely not be so bad."

Jiang Han was speechless. If he was really an excellent teacher, he would be able to teach Zhang Haidai well and others even better.

Compared with others, Zhang Haidai's results may still be at the bottom.

Seeing that Zhang Haidai was serious again, Jiang Han left Zhang Haidai's room and went to another room.

Jiang Han opened his phone and checked the online fresh food delivery.

He checked several stores and finally found the answer in the comment section of a fresh food store.

There was a customer who sent several pictures in a row.

He filmed the entire process of receiving the express and opening the package.

Based on the pictures, Jiang Han saw that after opening the foam packaging box, the outermost layer was a bag of dry ice.

Then, a layer of insulation bag was wrapped inside.

This thermal bag has a layer of pearl cotton inside and a layer of silver aluminum foil outside. When he bought ice cream at the supermarket in town, the clerk gave him a bag like this.

Inside, there are two bags of ice packs. The fresh produce is placed together with these ordinary ice packs.

From ice bags, to insulation bags, to dry ice, and finally to a layer of foam box on the outside, there are four layers of insurance in total.

He checked online again and found that the rise of cold chain transportation in recent years was due to the use of dry ice.

The temperature of dry ice is too low to come into direct contact with seafood, so the insulation bag serves two purposes.

First, do not let the temperature of the ice bag inside the insulation bag leak out too quickly, and second, do not let the dry ice get too cold and freeze the seafood.

He checked other reviews and found that many customers reported that the dry ice bags they received were empty, but the ice packs inside the insulation bags did not melt.

That said, dry ice shipping is effective.

Solid dry ice absorbs heat and turns into air, ensuring the freezing effect of fresh food in the insulation bag.

Jiang Han immediately knew what to do and remembered that Mr. Yu, the boss of the ice cream shop, had left him a business card.

He called Boss Yu again, "Boss Yu, do you have dry ice?"

"Dry ice? I can do it. But it's a little more expensive." It will definitely be more expensive than normal ice.

The dry ice here is basically bought from seafood restaurants.

Hollywood Hotel often buys dry ice from him. Restaurants usually use it when making sashimi.

So when you eat sashimi in a restaurant, you'll always see a fairy-like white smoke. That white smoke is the state of dry ice when it turns into gas.

Jiang Han asked about the price and felt that it was within his acceptable range.

If his seafood was sold in this way, the price would definitely be higher than their local market price.

So it is impossible for him to lose money.