After Yuan Hewen left, He Yunxi talked to Lu Yan about preservation.
Lu Yan pulled her to lie down on the rocking chair next to her and asked, "How did you do it in your world?"
"Add preservatives. This kind of storage time is relatively long, one to two years, three to four years. At the same time, it also needs to be isolated from the air. In the past, it was all vacuum packaging." He Yunxi said, "But this is not realistic. There is no vacuum here.
Nothing, no preservatives.”
Lu Yan was not disappointed and said: "Isolate the air? So the hot sauces you made before were sealed with water or soil just to isolate the air?"
"Yes. If the air can be isolated, it can be kept fresh for a period of time. However, it is sealed with water and mud, which makes transportation and use a little inconvenient."
"Are there any other ways to isolate the air?"
"It's okay if there is rubber." He Yunxi said, "I don't know if you have rubber here. It would be great if there is rubber."
"Rubber? What is that?" Lu Yan asked.
"Rubber is a substance extracted from rubber trees or rubber grass. It can shrink. Many seals in our world use this on lids. As for rubber trees, the hevea tree is the best." He Yunxi explained, "The hevea tree has a lot of glue.
, as long as you cut a wound in the bark of the tree, it will secrete a lot of sap containing rubber emulsion. After further processing, you can make many things."
"When the bark is cut, a lot of sap will flow out..." Lu Yan squinted his eyes and thought for a while, then said, "I seem to have heard of this kind of tree in my previous life."
"Have you heard of it? Is there such a thing?" He Yunxi suddenly became excited, "This kind of tree grows in hotter places, and its leaves..."
After hearing He Yunxi's description of the rubber tree, Lu Yan said: "I don't know what you're talking about, but the fact that it sheds a lot of sap is very similar to a tree called a tree that sheds tears. And that tree is...
It's in the south. I can send someone to the south to see if it's the same as what you described."
"Okay." He Yunxi smiled, "If we can really find rubber, it will be convenient. By then, Daliang's economy will be able to rise to a higher level."
Lu Yan raised his eyebrows: "So powerful?"
"Think about it, some things now can only be sold locally because they cannot be kept fresh. Especially fruits, which are easy to spoil and can only be sold near the place of production. But since it is the place of production, there is naturally no shortage of such fruits.
The price will definitely not be high. But in other places, if this kind of fruit is available, the price will be ridiculously expensive, right?"
She heard this from Xie Yuanming.
Xie Yuanming has been to many places and has seen many situations like this. She heard it when he told some little guys about his travels before.
At that time, she also sighed and said that if it could be canned or something, that would be fine too. Unfortunately, canned fruit would not last long.
If there is rubber, everything will be fine.
Lu Yan nodded: "Indeed. Although I was in poor health and didn't go to many places in my previous life, I have read many miscellaneous books, and some of them mentioned this situation."
"If the fruit is made into canned fruit, it can last for at least half a year. This half year is enough to transport the canned fruit from the place of production to various places in Daliang." He Yunxi said, "Not only fruits, but also meat and seafood can be made.
It can be made into various cans, so that it can be sold from the coast to the inland. Then the inland things can be transported to the coast. If there are more caravans, do you think the economy will survive?"
"You mean... vigorously develop business?" Lu Yan asked.
"Yes." He Yunxi said, "I know that the status of businessmen in this era is very low, but the country is rich and only with money can we be rich! Of course, agriculture is more important. If you don't have food, everything else is versatile. But like fruit farmers and fishermen
They are also farmers, and business can also drive some agriculture."
Lu Yan reached out and touched her head: "You are right. But the status of a businessman is not something we can improve in a short while."
"There's no rush. This is the way this era is. It's impossible for the two of us to change things." He Yunxi is more open-minded and self-aware. He doesn't think that he is omnipotent since he came here in modern times. He wants to change this.
Change it there.
She only thinks that it would be good if she can do good things to others and improve her life within her own ability.
Lu Yan hugged He Yunxi and asked her to tell him about the past life.
Although he has lived for two lifetimes, his knowledge is ahead of most people's, but his knowledge is limited to this era. He feels that her world is very novel, and she can say different things every time, which can make people happy.
He gained a lot of knowledge.
He memorized all of this, maybe it would be useful in the future.
To take a step back, even if these are not available, he can still make her feel that this world is not just for her, but that he can share it with her.
In this way, she will not feel lonely and lonely in this world.
He Yunxi also liked to talk about past events with Lu Yan. The two chatted a lot, and they didn't stop until He Yunxi's mouth was dry.
Lu Yan poured water for her and then listened to her quietly.
The sun shines on the two people through the grape trellis, and when the wind blows, the light spots also sway.
It looks like the years are peaceful.
He Yunxi felt a little sleepy and fell asleep leaning on him. Lu Yan was afraid that she would fall off him, so he held her in his arms and leaned against the rocking chair, staring at the small grape seeds on the vine in a daze.
Luo Fu stood at the door of the courtyard. Seeing that his wife and the master had such a good relationship, she consciously guarded the door to prevent anyone from entering and disturbing them.
He Yunxi squinted for two quarters of an hour before he woke up. He got up from Lu Yan and asked, "You haven't squinted for a while?"
"No."
"By the way, I remembered something. Didn't my uncle get tenth place in the exam? Can he enter Qingfeng College? When will they start school?" He Yunxi asked.
"Master, I met my uncle today and found out that he got tenth in the exam and told me about this." Lu Yan said, "This batch of them will enter school together at the end of April. There is only one quota in Yanjiang County, and there are ten places outside. Master
Just tell him to wait."
"Oh, I heard my mother and the others were asking about houses in the county town when I had lunch today. Judging by that, they probably want to find a yard in the county town so that my uncle can study more conveniently."
"Do they want to buy or rent? Do they just want to live in it, or do they want to do some business on the side?"
"I think that means renting, right? I want to be closer to the college, and then find someone to take care of him, take care of his life, and let him study in peace. Uncle and grandpa, they definitely don't want to come."
There is so much land in the village, and we have to make black bean sauce at home, and we have to make chili sauce later when the peppers are harvested. It would be too inconvenient in the city.