Wei Renshi unscrewed the other cans one by one and placed them in front of Li Chun and Jiao Haiqing for them to taste them one by one. Li Chun and Jiao Haiqing each tasted them. Li Chun sighed: "Brother Renshi, this greenhouse is really a good thing. In the past, not to mention me, even if it was Your Majesty, it would not be easy to taste a bite of green vegetables in this winter. Now, everyone can eat green vegetables!"

Wei Renshi still smiled but said nothing, took out the canned meat and opened it for Li Chun and Jiao Haiqing to pick it up.

"This meat..." Li Chun and Jiao Haiqing were a little confused when they saw that it was not Lucai, but they still picked up the meat and tasted it.

Li Chun's eyes lit up and he said, "Not bad! Soft and delicious, salty and delicious!"

"Prince Chun, Brother Jiao, you don't know that all the things you taste today are not from the greenhouse." Wei Renshi also picked up a bite of beef and said while eating it.

"Oh?" Li Chun and Jiao Haiqing looked down at the things in front of them. Li Chun asked again: "It's not from the greenhouse. In winter, where can you grow green vegetables besides the hot spring?"

"Of course, it's not next to the hot spring." Wei Renshi smiled mysteriously and said to Li Chun and Jiao Haiqing: "To be precise, these things are not planted now."

"How can you get such fresh green vegetables?" Jiao Haiqing asked even more curiously.

Wei Renshi replied with a smile: "These things are actually saved during the season."

Wei Renshi pointed to the canned food in front of Li Chun and Jiao Haiqing and said, "It's like this bottle of cucumber, which was picked in July. And this bottle of plums was also from that time. This pot of meat has been almost four months old. All of these things were prepared four months ago, but I have only come to eat it today."

"What?!" Li Chun and Jiao Haiqing looked down at the green vegetable in front of them in shock.

Li Chun stretched out his chopsticks, picked up half of the cucumber, looked around, and bit it with his teeth. It turned out to be a crisp texture, and he couldn't help but be even more surprised.

"This... is almost four months... Brother Renshi, how did you let these green vegetables be kept for so long, but they are still so fresh and tender?" Li Chun asked with his head raised.

"It is a way to store food and fruits and vegetables." Wei Renshi said: "These things are called canned food. Vegetables, fruits, meat and other foods that cannot be preserved for a long time are cooked, put them in a wide-mouthed glass bottle, and then fumigate them with hot steam. After half an hour, seal the bottle while it is hot, then wrap the prepared thin thread immediately with the sealing thread, wrap a layer of wax on the outside to ensure the sealing, and then let it cool naturally. In this way, the food and fruits and vegetables inside can be preserved for a long time. Even if it is opened and eaten for half a year, it can still retain its fresh and tender taste, and naturally it can also preserve the nutrients contained in these foods and fruits and vegetables."

Li Chun and Jiao Haiqing's eyes froze, and they immediately raised their heads, moved their eyes away from the green vegetables, and stared at Wei Renshi.

Especially Jiao Haiqing, he was full of surprises. He had already guessed the intention of Wei Renshi to make these things.

While Wei Renshi picked out the canned food and placed it in the plate in front of Li Chun and Jiao Haiqing, he continued: "The long-distance sea boats set off from Guangzhou and have to Dashi all the way, and even to Daqin. The temperature and humidity along the way were high, so even if the ship brought a lot of food to replenish, it was prone to rot, let alone vegetables and fruits."

"When vegetables and fruits are as important as food for the human body. If you don't eat vegetables and fruits for a long time, the human body will lack many things that rely on to maintain health." Wei Renshi said: "What is most afraid of when sailing in the ocean is malnutrition. If the people on the boat lack vegetables and fruits for a long time, they will easily get a large number of symptoms, called sepsis. Once you get this disease, it is a mortality based on our current medical skills. This is also the most important reason why long-distance ocean-going and death are the most important reason."

"To prevent this disease, we usually eat vegetables and fruits. However, vegetables and fruits are often very perishable and spoiled, unable to be large enough, and can be carried for a long distance." Wei Renshi said again: "With this thing, this problem has been solved."

"Can this thing really keep those fruits and vegetables for half a year?" Li Chun asked in a deep voice with a serious look.

Wei Renshi nodded solemnly and replied, "I made these cans three months ago. When I opened them today, there was no sign of the things inside that were about to rot or deteriorate. It depends on the quality. If I didn't open them, there would be no problem if I put them for another three or four months."

"This color is indeed fresh and tender, just like a fresh pick." Li Chun looked at the things in the can and said.

"In fact, it is not only the people on the sea boat. These canned foods can actually be used as supplements to the military rations in the land army." Wei Renshi also said: "People need vitamins provided by vegetables and fruits to ensure their health. If the army travels long distances, if they can get supplements from these vegetables and fruits while eating military rations, it will not only be of great benefit to the body, make the body healthier, exert better combat effectiveness, but also improve the food, so that the soldiers will be in a good mood when eating, and will also have a better effect on the morale of the army."

Li Chun has been in the Right Jinwu Guard for so long now, and Wei Renshi is often deliberately arranged an opportunity to teach him some military allusions and knowledge. When he hears this, how can he not understand the benefits of this thing to the army?

"Then it shouldn't be too difficult to make these things, right?" Jiao Haiqing asked suddenly.

Wei Renshi nodded.

Jiao Haiqing clapped his hands excitedly and said, "Prince Chun, Brother Renshi, I went to sea twice in person and really witnessed the scene of maritime merchants. The maritime merchants in our Tang Dynasty alone are ruthless, let alone maritime merchants from other countries. However, maritime merchants in any place are worried about this. If those who really eat these vegetables, vegetables and fruits can avoid such strange symptoms, why don't we spread this method? After the spread is spread, the other people cannot keep fruits and vegetables for a long time. Can we just take these... what's the matter--"

"Can." Li Chun reminded.

"Yes! Canned food!" Jiao Haiqing said: "Take these canned foods to sell, sell them to Datang, and sell them to other maritime merchants everywhere!"

Wei Renshi nodded and smiled, "I'm just thinking."

The three of them decided on the matter together.

Just as we were about to celebrate, we suddenly heard the shouts of servants coming from outside, saying, "Xiaolang, there are several guards outside, saying that they are from the Eastern Palace. If there is something important to find Prince Guangling!"

Wei Renshi's heart skipped a beat.
Chapter completed!