Chapter 806: Oil extraction method

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After the anorexia caused by the hot weather was completely cured by Han Cheng with a few bowls of jelly, Wu's spirit appeared very good, and he returned to the previous state.
After Han Cheng saw this kind of fruit that was almost filled with dung, he looked happy.
Long ago, he wanted to ask Han Cheng what is the use of this fruit.
It was just that Han Cheng was in a very excited state at the time, and he was constantly arranging things there, so he has been holding back till now.
"This thing can be used to squeeze oil, and the squeezed oil can be used to brush rattan armor, rattan helmets, rattan shields, and the tribe's wood used to build houses.
After being brushed with the oil of the vine armor, it can become very strong.
Not only will it no longer be damaged by retting, but it will also become very strong, and it is not easy to chop it with a knife!
The rest of the wood is brushed with the oil squeezed out of this kind of thing, so I no longer fear the wind and rain, and can greatly extend the use time of the wood..."
Han Cheng was very excited to tell Wu Wu the various benefits of tung oil.
Wu also became happy when Han Cheng said this.
Wu's happy point is not much the same as Han Cheng's happy point. Han Cheng is happy to get tung oil and then to be able to greatly improve the quality of the cane.
Wu Wu is more happy to have this kind of oil that can be made from poisonous fruits in front of him, so that the son of God will no longer spoil the fatty oil in the tribe.
A few days ago, Han Cheng used fatty oil to brush vine armor, but Wu gave him a heartache.
This kind of fruit can poison people to death, and the oil obtained should not be eaten. Under such circumstances, no matter how much the vine armor is brushed, the witch will not feel distressed.
"God, then let's get these fruits out of oil soon!"
Wu said excitedly on the side.
Get this oil out early, and the will no longer use delicious fatty oil to brush things like vine beers.
"Well, squeeze out the tung oil!"
When Han Cheng was said by the witch, such thoughts arose.
By squeezing out the tung oil sooner, you can improve things like vines earlier!
Han Cheng stood up while talking and was about to start squeezing oil, but after two steps, his whole body was stunned.
Damn it! What do you use to squeeze oil!
In the later generations, Han Cheng saw oil pressing, soy beans and rapeseeds were sent to the oil press on the street, so that people could use electric machines to press the oil.
After the machine came down again, the rapeseeds were squeezed into cakes, and the squeezed oil fell into the basin below the oil outlet.
It's just that, with his own background in liberal arts, even if he is forced to die, he can't make such a machine!
In addition to squeezing oil with a machine, there is another way to get oil.
This method is to use a stone grinder to grind the oil, grind the sauteed sesame seeds finely with a stone to make a tahini paste, and then put the tahini paste in a large round-bottomed pot, shaking continuously one after another.
If the shaking time is long, the oil contained in the oil residue will be shaken to the top.
Use something to lift the top layer of oil away, and then continue shaking.
After such continuous shaking for a period of time, oil will still be shaken out of the oil residue.
Han Cheng's grandfather used to grind sesame sesame oil, and then used a pole to carry the oil picks to buy oil. The two stone mills at home were left behind at that time.
When Han Cheng hadn't crossed, he once went back to his hometown to see. In the deserted courtyard, many things have been dilapidated, only two stone mills are still quietly leaning against the wall.
There are still training sticks behind the door, and there is no sound in front of the hall...
When I was a child, I never saw my grandfather doing this. All Han Cheng is no stranger to sesame oil.
However, in memory, it seems that only small sesame oil is used for stone grinding, and the rest, such as peanut oil, soybean oil, and rapeseed oil, are all squeezed out by machines.
This is a bit embarrassing...
"God, why don't you get oil?"
On the side, he also hoped that Han Cheng could use these fruits to make oil earlier, and then stopped trying to fight fatty oil. He saw Han Cheng who said he was going to squeeze oil, but he did not go immediately, but stood here After a daze, and after a while, he finally couldn't help but open his mouth.
Han Cheng sucked his nose and squeezed the oil. I think too, I think better than anyone in the tribe, but he doesn’t have the right tools to squeeze oil!
Can't you squeeze with your teeth?
If you really do this, it is still a trivial matter whether your teeth will be exhausted. The most important thing is that if you chew for too long, you will have to be served by a dung scoop...
I still thought things too simple, thinking that everything would be fine with the tung oil...Sure enough, there were no simple things in primitive times...
After standing here for a while hesitating, Han Cheng could only choose to use the method of grinding small oil to see if he could successfully get some tung oil.
As for oil extraction, this looks like something from a lifetime series!
"Well, let's go to grind oil." Han Cheng said, already quietly changing oil extraction to grind oil.
However, some changes in the wording were not noticed by Wu Wu. Even if she was aware of it, Wu could not tell the difference, because Wu Wu didn't understand such things as oil extraction.
Han Cheng put the tung oil fruits in his hands on the ground, and then let people get clean river sand from the side of the river.
Then I made a lot of sand and put it in the pot, letting people burn under the pot.
The witch who followed this scene and the rest of the people who helped were stunned.
The people of his tribe, no one had eaten soil even when it was the hardest and the food was the most scarce. The son of God is now so powerful that he has directly crossed the low-level realm of eating soil and changed to eating sand!
It's just that the fine sand is very awkward when you bite it on weekdays. Now that it is put in the pot like this by the god, and fry it with a shovel, can it become awkward?
Although the act of using a pot to fry sand seems extremely unreliable, but the gods do many things that seem unreliable to them on weekdays. Later, most of them have become things that are of great benefit to the tribe. Now After these onlookers experienced the initial stunned, many people actually faintly believe that the son of God can make the sand delicious.
Some people are even more eager to taste what it is like to sauté the sand made by the son of God.
Among them, Wu, the old primitive man who recovered from the initial shock, was most excited and enthusiastic.
If the sand can become delicious when fried like this, it will be more comfortable for my tribe in the future!
There is no need to grow the land. When you are hungry, you can get some sand directly by the river and fry it.
Even after traveling to the primitive age, Han Cheng's nerves have become very tough after experiencing thousands of tempers. At this time, after understanding the Wu and their thoughts, Han Cheng's cheeks still couldn't help but twitch.
It's so cruel! More cruel than myself, someone who came from the food empire!
I, a person from a big food empire, dare not say anything to these sands. It's good for you, and you directly started the old idea of ​​relying on eating sand to eat directly...
"This sand is not for food, not only can't be eaten when it's fried, it can't be eaten even if it's boiled and steamed, and it's the same with things like green onion, ginger, salt..."
After feeling the ferocity of the people in the tribe and their good teeth, Han Cheng waved his hand again and again to popularize science to everyone, especially the witches, and he had to explain it.
The old man’s teeth are about to lose half of it. What if it’s because of tasting the fried sand and losing some more?
In order to prove that I was not frying the sand for eating, after I fry the water in the sand and burned my hands after touching the sand, I hurriedly dropped the half-bag of tung oil fruit that Bigfoot brought back into the pot containing the sand. , Stir with a shovel and start to fry.
For small grinders at home, you need to fry the sesame seeds first, so that not only the oil fragrant, but also the oil yield can be improved.
Since Han Cheng wanted to make tung oil according to the method of grinding oil, he naturally needed to follow this procedure.
Moreover, I remember that I saw it there, saying that cooked tung oil is better than raw tung oil.
The tung oil is big, if you don't want to Gaza, it is easy to fully fry it. The most likely thing is that the outside has been fried, and the inside is still cooked.
But with sand, something that can be cared for in all aspects is different. Not only can the buried tung oil be heated evenly, but it can also prevent the heat from becoming so scorched.
With the experience of frying peanuts in shell, Han Cheng was able to think of such a way, it is not uncommon for this tung oil fruit to be fried well.
After a lot of stir-frying, Han Cheng confirmed that these tung oil fruits had been fried, and then the fire was removed.
After letting it cool a bit to make the temperature of the sand cooler, a bamboo sieve was found.
Shovel the sand from the tung oil fruit belt into the bamboo sieve, hold it back and forth with both hands, and dry it, leaving only the fried tung oil fruit in the sieve.
Such a simple and quick method made the eyes of people who were still thinking about how to get these tung oil fruits out of the sand bright.
"It's so fragrant!"
Han Cheng called some people to peel off the fried tung oil with him.
Unlike the time when it was not fried before, the tung oil fruit that was fried just now has a hot fragrance.
Someone sighed here while peeling their shells.
If it weren’t for the big feet that ate the tung oil fruit, they were still lying on the bed now, and the son of God had confessed over and over again that they could not eat these things, and if they were eaten, they would poison people to death. These people would definitely smell the sweet-smelling fruit Delivered to the mouth...
The witch was secretly delivering something to his mouth now, not tung oil, but some sand that had fallen in temperature secretly poked.
Although Han Cheng has made it clear that these fried sands cannot be eaten, Wu still imagined that as long as people are hungry, he would get back some sand from the river and eat them, and his heart was moved. .
So I stabbed some sand and gave it to my mouth...
"Bah, bah..."
The witch was spitting sand out there, and this thing was exactly the same as the son said, it was not delicious.
Han Cheng, who watched the scene where Wu spit sand out, wanted to laugh again, his face twitching again.
In fact, when Wu secretly hid the sand in his hands, Han Cheng saw that the reason why he didn't stop it was because Han Cheng felt that Wu's spirit of exploration was very commendable.
Although he is a person who has come, he is not an almighty person, and he can't do many things by himself.
Under such circumstances, it is extremely important to cultivate newcomers and cultivate the exploration spirit of the tribe. Only in this way can the tribe develop better...
Han Cheng did not directly grind the peeled tung oil fruit with a stone mortar.
Because compared with soybeans and peas, the size of the tung oil fruit is still too large and difficult to grind. It is best to mash it with a stone mortar, and then grind it with a stone.
"Boom! Boom!..."
Han Cheng didn't let anyone else do it, but he held the wooden pillar and smashed there.
As he continued to exert his strength, the fried tung oil fruit in the stone mortar was smashed. Later, after the tung oil fruit became more broken, with every impact of Han Cheng, the oil would vaguely seep out. When the stick is put away, the oil will retract again.
After mashing all the tung oil fruits he brought back, Han Cheng poured them in a bowl and then went to a stone mill to grind them.
As the stone mill rotates round and round, these crushed tung oil fruits are ground a little and fall from the stone mill.
Looking at the grated tung oil fruit, Han Cheng's complexion didn't look good.
Because this grated tung oil fruit is different from what he imagined.
In my impression, when you grind the fried sesame seeds, the sesame seeds will directly turn into sesame paste, like soy milk, flowing slowly down the stone mill.
And now, although these grated tung oil fruits look shiny, they are not sauces, but rather loose powders.
This fucking, this is unreasonable!
Grinding oil is the only way to get tung oil that I can think of at this time, but now, it's done like this!
Looking at the tung oil fruit crushed pieces that fell into the groove around the stone mill and stopped moving, Han Cheng's heart was cold.
There is no need to perform the next step of oil shaking at all, Han Chengji has already determined that he wants to make tung oil like a small grinding oil, basically there is no possibility...
"Oh~"
Unwillingly put all the polished tung oil fruit into a pottery pot with a sharper bottom, and sat there for a long time, after no oil blossoms appeared, Han Cheng finally gave up this futile practice and sat on the lower wooden pier. I couldn't help but let out a long breath.
Seeing the tung oil fruit right in front of me, but unable to get the oil, this is really infinitely melancholy.
From great joy to great compassion, this kind of roller coaster-like psychological experience is really uncomfortable...
The dusk fell, time passed slowly, and the night grew thicker.
After Xiao Wandou and the Bai Xuemei beside him fell asleep one after another, under the cover of night, Han Cheng removed all the disguise, lying on the kang, looking at the dark roof, worrying about getting tung oil.
He had been thinking about this for a long time, and there was a mess in his mind, and he still had no clue.
After a while, he threw all the messy thoughts out of his mind, thinking about it from the most fundamental point.
The so-called oil extraction, to put it bluntly, is to use enough pressure to press out the oil contained in the raw materials that can produce oil.
Later generations of oil pressing machines were designed according to this principle.
Theoretically, as long as the space where the oil can exist is reduced as much as possible and given enough pressure, then the oil can be squeezed out of the oil. It is not necessarily the kind of squeezer that uses electric belts for later generations. Oil machine.
Moreover, in ancient times when there was no oil press, there were also vegetable oils, some were used for eating, and some were used to light lamps.
No matter what it is used for, this clearly tells Han Cheng one thing, that is, the electric-belt oil press that does not rely on later generations can also extract oil!
In other words, there are other ways to extract oil.
Following this line of thinking, Han Cheng sat up from the kang, fumbled and lit the oil lamp, wrote a word of'squeeze' on the ground with a charcoal pen, and squatted there carefully. Look.
After watching this for a while, Han Cheng's expression grew brighter.
If you look at the word ‘squeezing’ separately, it means a ‘zha’ plus a ‘hole’.
This explains the problem. It can be understood as using a tree stick to pound into another pit.
In addition, Han Cheng remembered that during the daytime today, when he smashed the fried tung oil fruit in a stone mortar with a tree stick, there was a scene of tung oil faintly emerging from the tung oil fruit with his force. Why not use squeezing? The oil machine, and the method of squeezing out the oil, has vaguely surfaced in Han Cheng's mind.
After thinking about this, there is another point that Han Cheng needs to solve, and that is how to make the oil squeezed out of the wooden stick flow out, instead of retracting the wooden stick back into the oil.
Today, when he pounded the stone mortar with a wooden stick, the moment he pounded it down, tung oil faintly appeared, and then he retracted again.
If you don't take this stick back, but continue to add sticks to it, a little bit to compress the space inside the mortar, so that the squeezed oil will not shrink back, right?
A lot of things are window paper. When you don't think of a solution, you can embarrass people, but once you figure it out, your thinking becomes more and more smooth, and many other problems are solved!
Just like Han Cheng now.
Crouching here, Han Cheng became more excited the more he thought about it, and after such excitement continued for a while, it subsided a bit.
A stone mortar is not suitable for making a hole. Although the stone is hard enough, its toughness is not enough. If you smash the wooden sticks into a stone mortar filled with wooden sticks, Han Cheng thinks this stone mortar is very likely. Will be propped up.
After all, when the tribe opened the stone, it also opened a gap and then used wooden stakes to prop it up.
It's just that you don't use stones to make the "hole", so what should be used to make the "hole"?
After thinking about it for a while, Han Cheng's gaze once again fell on the word ‘squeezed’ written by him.
After a while, a stunned expression appeared on his face.
Oak is a very slow-growing tree. Because of its slow growth, the wood is very solid.
The creation of the characters was not random. When the character ‘squeezed’ was created, the rest of the trees were not selected. Instead, oak wood was used. If you think about it a little deeper, you can realize the meaning contained therein.
This is the charm of Chinese characters!
From the structure of the word alone, many things can be derived.
The rest is not to say, it is only Han Cheng thinking about oil extraction this time. If he is not confronted with Chinese characters, but with twists and turns of alphabetic characters, even if he puts some seasoning on these characters to eat, he will never think about it. What tips can I get from the above.
Blowing out the lamp and lying on the kang for a long time, Han Cheng didn't have any sleepiness, and he felt sincerely admired by the ancestors for the wisdom of writing characters in his mind over and over again...
"Come with me and cut down trees together!"
Early the next morning, Han Cheng greeted some people in the tribe and followed him to sabotage.
He was asleep at midnight last night, and he is still a hundred times more energetic after getting up early today, and he is really refreshed during happy events.
Although everyone didn't understand why the son of God called himself to wait for others to cut the wood this early morning, the things that the son of God explained were naturally not discussed.
Han Cheng is no stranger to oak wood. There are oak trees grown in several posts in Linhe, his hometown. They were planted in the last century and have been for decades.
None of these trees grew up, because when they were first planted, they were used for windbreak and sand fixation, and for firewood.
When winter comes every year, people who are idle start to chop it off, pull it back and burn it as firewood, and wait until spring will give out buds again.
In Han Cheng's hometown, these trees are called "forests". There are two main types. In fact, if you look at the trunks alone, you can see too many differences. The biggest difference between the two lies in the leaves.
In fact, the leaves of the two types of trees are more similar, but the leaves of one type are much larger than the other.
This kind of big leaf was called ‘Hu Ye’ in Han Cheng’s later home. When steaming steamed buns at home, Hu Ye was often used to make the pot.
The steamed buns steamed in a Huyepu pot have a delicate fragrance of sub-leaves, which smells very good and are delicious, which are not available in the buns sold in the bun shop.
Both of these trees will bear acorns when they grow up.
In Han Cheng's perception, two similar trees can be called oak, but in some places, when talking about oak, they only refer to the tree with large leaves.
These two types of trees also exist around the Qingque tribe.
Acorns, before Han Cheng came, were also a kind of fruit that people in the tribe were willing to collect during the winter.
"That's it!" Han Cheng pointed to an oak tree and said to the man holding the felling tool.
Unlike the woods in Han Cheng's hometown that were used as fuelwood gardens and were cut so that they had no chance to grow up, the oak trees around the Qingque tribe were tall enough.
After leaving the tribe for a few miles, it didn't take long for Han Cheng to photograph an oak tree, the kind that two people couldn't hold together.
If you want to squeeze out more oil at one time, the hole in the trunk must be big, because only in this way can you put more tung oil in one go.
Correspondingly, the tree for making tools must be thick.
Immediately after Han Cheng gave the order, someone with a bronze axe tied around his waist, jumped up to the tree three times and then began to chop branches there.
This is to make the tree fall more quietly and cover a smaller area, making it safer for people logging below.
When one of the branches of this big tree was cut down, there were four people who used to pull big saws, two in groups holding two big bronze saws that were used to untie boards on weekdays, one on the left and the other. The right one began to saw.
Oak wood is solid, especially this kind of old tree that is sufficiently old. In addition, in the tribe, bronze saws are used for logging instead of bald-headed chainsaws. So I waited until it was almost noon the next day. A big tree is considered to be completely brought down.
After the big tree fell, some of the cut branches began to be transported to the tribe.
The thick ones can be used to build houses, and the thin ones can be used to burn charcoal.
Several large saws rested for a while, took over the sharp saws that had been re-sharpened, and continued to saw the thick tree, which was mainly to cut off the trunk of the tree.
This work has not been completely completed until the evening.
By the time everyone brought the thick trunk back to the tribe, it was already noon on the third day.
Han Cheng had only a preliminary idea about how to make these tools for oil extraction, and he could only cross the river by feeling the stones.
After returning to the tribe, Han Chengchi started to make tools according to his own understanding.
It was a round pit like a mortar on a tree trunk lying on the ground.
After the round pit is taken out, it is tied tightly with ropes on both sides of the round pit. This is to prevent the wooden wedges from getting in too much, which may spread the trunk.
After finishing these and fixing the wooden stakes that were smashed into it, Han Chengcheng poured the tung oil fruit that had been grinded into the pit, and then put the prepared wooden stakes upright in the pit.
As a result, a few sticks were put into it, and Han Chengcheng stopped moving.
Because after these wooden pillars were put in, a part of the loose tung oil fruit powder immediately rose up, and it couldn't be suppressed at all.
After thinking for a while, Han Cheng stopped and pulled out these wooden stakes one by one, scooped out the tung oil fruit powder inside, wrapped it in linen cloth, and put it into this wooden version of the ‘stone mortar’ again.
Then continue to often put wooden stakes inside.
These tree sticks were pressed on the tung oil fruit powder wrapped in sackcloth. The situation just now slowed down a lot, but the fruit powder still couldn't be pressed.
Han Cheng could only stop again and continue to think about solutions.
After a while, I asked the limp to get a wooden board about the same shape and size as the wooden pit, put it in, and press it on the tung oil powder wrapped in linen, and then put the wooden stake in the wooden pit again.
This time, because the stakes did not directly bear on the tung oil powder, but on the wood that covered the tung oil powder underneath, the incomplete compression did not happen again.
When Han Cheng saw this, his face showed joy.
As for how to squeeze oil, he himself has a little knowledge, so he can only try to find problems in the process, and find a way to solve them, so as to perfect this method of squeezing oil little by little.
It seems that progress is still good.
At the beginning, the space of the wooden pit was large enough, and it was easy to put wooden piles in it. However, as the piles became more and the space inside became smaller and smaller, it was not easy to put wooden piles in it.
Later, you can only use a hammer to hit it inside, and this time is also the most exciting time.
"Boom boom boom..."
With the continuous swing of the hammer, these wooden pillars were smashed and sank one by one. The space under the wooden pit was continuously squeezed, and the tung oil pressed by the wooden board was wrapped. Under such squeezing, the volume shrank and slowly The oil oozes...
Through some gaps, after seeing the squeezed grease, Han Cheng's face was full of smiles. After working for a few days, he finally saw tung oil. How did this make him unhappy? At the same time, this also proved the correctness of his previous thinking!
Not long after being happy, Han Cheng soon encountered a new problem. Although the oil was squeezed out, there was no way to get it out...
Because this wooden pit has basically been filled with wooden piles, there are few gaps, and it is impossible to get something to scoop out the squeezed oil.
To no avail, Han Cheng could only turn the big tree trunk ninety degrees~EbookFREE.me~ The opening was parallel to the ground, and the grease inside was poured out.
I didn't pour out much, there were only two bowls, and the oil output rate was really not high.
But this is enough for Han Cheng to be happy.
But before Han Cheng was happy, a new and extremely fatal problem reappeared, that is, the stakes that were stuffed into the wooden pit could not be taken out!
You know, in order to be able to pack enough pressure on the tung oil fruit powder below and squeeze it out of the oil, these wooden stakes were smashed into the inside with a bronze hammer one by one later.
So much effort was used to nail it, how easy is it to pull it out now?
Lame and others tried for a while, but they were helpless.
Looking at the wooden pits that were short and middle-high on the outside, and nailed like the plastic bucket filled with bamboo sticks at the door of the life-threatening little string, Han Cheng's cheeks twitched.
It is easy to solve the problem of not automatically leaking oil. Just make more small holes at the bottom or on both sides near the bottom.
It is a big problem that the nailed sticks cannot be taken out.
You know, it took them nearly two days to get out of this stone mortar-like wooden pit, and it took them nearly two days. Now it’s good, and it has become a disposable item...
Moreover, this wooden pit is still too shallow and too small. There is not enough tung oil fruit powder that can be held at one time. According to the current situation, according to this method to extract oil, when the tung oil fruit powder is sufficient, such a pit is at most Only five or six catties of tung oil can be produced. The efficiency is too low and it is not cost-effective to make it.
It's just that now this tree is the kind that two people can't hug each other. If you want to find a thicker tree and perform such an operation, how much trouble...