Chapter 806: The Oil Extraction Method (Four-in-one, with
(Additional update for book friends Ice and Snow Tyrannosaurus Rex)
After the anorexia caused by the hot weather was completely cured by Han Cheng with a few bowls of jelly, Wu's spirit seemed to be very good and he returned to his previous appearance.
After Han Cheng saw this kind of fruit that almost made his big feet stuffed with feces, he was so happy that even the witches saw it.
He had wanted to ask Han Cheng a long time ago what the use of this fruit was.
I just saw that Han Cheng was in a very excited state at that time and was constantly arranging things there, so I have been holding it back until now.
"This thing can be used to extract oil, and the extracted oil can be used to brush things like rattan armor, rattan helmets, and rattan shields, as well as tribal wood used to build houses and the like.
Things like rattan armor can become very strong after being brushed with oil.
Not only will it no longer be damaged due to soaking, but it will also become so strong that it can’t be broken even with a knife!
If the remaining wood is brushed with the oil extracted from this thing, it will no longer be afraid of wind and rain, and it can greatly extend the use time of the wood..."
Han Cheng was full of excitement and told Wu the various benefits of tung oil.
When Han Cheng said this, Wu also became happy.
What makes Wu happy is not the same as what makes Han Cheng happy. Han Cheng is happy to get tung oil and then be able to greatly improve the quality of things like rattan armor.
The witch was more happy that with the oil made from the fruit that could poison people being held in front of him, the Son of God would no longer waste the fat oil in the tribe.
A few days ago, Han Cheng used fat oil to paint his armor, which made Wu feel very distressed.
This kind of fruit can poison people to death, and the oil produced should not be eaten. Under such circumstances, no matter how hard you apply it on things like vine armor, the witch will not feel distressed.
"Son of God, let's get the oil out of these fruits quickly!"
Wu said excitedly on the side.
Get this oil out as soon as possible, and Shenzi will no longer use delicious fatty oil to brush things like rattan nails.
"Well, squeeze out the tung oil!"
When Han Cheng was told this by the witch, he immediately had such thoughts.
If you squeeze out the tung oil earlier, you can improve things like rattan armor earlier!
As Han Cheng spoke, he stood up and was about to start pressing the oil. However, after taking two steps, he froze.
Damn it! What are you using to squeeze the oil?
In later generations, the oil extraction that Han Cheng saw was that soybeans, rapeseeds and other items were sent to oil pressing mills on the street, and people used electric belt machines to extract the oil.
After the machine comes down once, the rapeseed and other things are pressed into cakes, and the pressed oil falls into the basin below along the place where the oil comes out.
However, with a liberal arts background like me, even if I put myself in a difficult situation, I still can't make such a machine!
In addition to using a machine to extract oil, there is another way to get the oil out.
This method is to use a stone grinder to grind oil and finely grind the fried sesame seeds into sesame paste, then put the sesame paste in a large round-bottomed pot and shake it one after another.
If the oil is shaken like this for a long time, the oil contained in the oil residue will be shaken to the top.
Use something to lift off the top layer of oil, and then continue shaking it.
After shaking continuously for a period of time, oil will be shaken out of the oil residue.
Han Cheng's grandfather used to grind sesame and sesame oil, and then use a pole to carry the oil picker to buy oil. The two stone mills at home are from that time.
Before Han Cheng traveled through time, he once visited his hometown. In the deserted courtyard, many things were dilapidated and only two stone mills were still leaning quietly against the wall.
There is still a training stick behind the door, but there is no sound of calling children in front of the hall...
When I was a kid, I never saw my grandfather do this, so Han Cheng was no stranger to grinding sesame oil.
However, in my memory, it seems that only small sesame oils are ground with stone mills. The rest, such as peanut oil, soybean oil, and rapeseed oil, are all squeezed out by machines.
This is fucking embarrassing...
"Son of God, why don't you get some oil?"
The witch who was on the side also hoped that Han Cheng could use these fruits to get oil as soon as possible and then stop pursuing the idea of fat oil. When he saw Han Cheng who said he was going to squeeze the oil, he did not go immediately, but stood here.
I was stunned for a while, and finally couldn't help but speak.
Han Cheng sniffed and squeezed the oil. I wanted to do it too. I wanted it more than anyone else in the tribe, but he didn’t have the right tools to squeeze the oil!
You can't squeeze it with your teeth, right?
If you really do this, it is a trivial matter whether your teeth will be tired out. The most important thing is that if you chew for too long, you will have to be served by a excrement scoop...
I still thought of things too simply, thinking that as long as I had the tung oil fruit, everything would be fine... As expected, there were no simple things in the primitive era...
After standing here hesitating for a while, Han Cheng could only choose to grind the oil into small pieces to see if he could successfully get some tung oil.
As for oil extraction, this looks like something from the Lifetime series!
"Well, let's grind oil now." Han Cheng said, quietly changing from oil extraction to oil grinding.
However, Wu did not notice these changes in wording. Even if he did, he would not be able to tell the difference because Wu did not understand things like oil extraction at all.
Han Cheng put the tung oil berries on the ground, and then asked people to get clean river sand from the river.
Then he put a lot of sand into the pot and asked people to light a fire under the pot.
Seeing such a scene, the Wu who was following him and the others who were helping were dumbfounded.
Even when the people in their own tribe were in the most miserable and food-scarce times, no one ever ate soil. The Son of God is now so powerful that he has directly transcended the low-level realm of eating soil and instead eats sand!
It's just that this fine sand is very gritty when you bite it. Now, if the Son of God puts it in the pot like this and stirs it back and forth with a shovel, will it become less gritty?
Although the act of frying sand in a pot seems extremely unreliable, Shenzi does a lot of things that seem unreliable to them on weekdays. Later, most of them turned into things that were of great benefit to the tribe. Now
After these onlookers were initially stunned, many of them vaguely believed that the Son of God could make the sand delicious.
Some people are even more eager to taste the taste of the sand fried by the Son of God himself.
Among them, Wu, an old primitive man who had recovered from the initial shock, was the most excited and enthusiastic.
If the sand becomes delicious when stir-fried like this, then my tribe will live a more comfortable life in the future!
There is no need to plant the land. When you are hungry, you can just go to the river to get some sand and bring it back to stir-fry and eat.
Even after traveling to the primitive era, Han Cheng's nerves had become very tough after experiencing many hardships. Now that he understood what Wu and the others were thinking, Han Cheng's face could not help but twitch.
It's so cruel! Even more cruel than someone like me who came from the foodie empire!
As a person from a big food empire, you don't dare to put your mouth down on this kind of sand. It's better for you to just come up with the idea of eating sand until you grow old...
"This sand is not edible. Not only cannot it be eaten stir-fried, but it cannot be eaten even if it is boiled, steamed or steamed. The same goes for adding things like onions, ginger, salt..."
After lamenting the ferocity and good mouths of the people in the tribe, Han Cheng waved his hands repeatedly and asked everyone to popularize science, especially the witches, who had to explain themselves well.
Half of the old man's teeth have been lost. What if some more are lost due to tasting fried sand?
In order to prove that I was not frying the sand for eating, I fried all the water in the sand and my hands were a little burnt when I touched the sand. I quickly dropped the half bag of tung oil fruits that Bigfoot and the others had brought back into the pot with the sand.
, stir with a spatula and start frying.
When grinding oil at home, you need to fry the sesame seeds first. This will not only make the oil fragrant, but also increase the oil yield.
Since Han Cheng wanted to make tung oil by grinding it into small pieces, he naturally needed to follow this procedure.
Moreover, I remember reading somewhere that cooked tung oil is more effective than raw tung oil.
The tung oil fruit is large. If you don't add sand, it is not easy to fry it completely. The most likely reason is that the outside has been fried, but the inside is not yet cooked.
But it's different with something like sand that can protect it in all aspects. It not only allows the tung oil fruits buried in it to be heated evenly, but also prevents the heat from becoming so scorching.
With experience in frying shelled peanuts, Han Cheng was able to think of such a method, and it was not unusual to fry the tung oil fruit well.
After some stir-frying, Han Cheng confirmed that the tung oil fruits had been fried, and then asked people to remove the fire.
After letting it cool down a little and letting the temperature of the sand drop a little, someone brought in a bamboo sieve.
Shovel the tung oil fruits together with the sand inside into the bamboo sieve, hold them with both hands and dry them back and forth. Only the fried tung oil fruits remain in the sieve.
Such a simple and quick method makes the eyes of those who were originally thinking about how to get these tung oil fruits out of the sand brighten.
“It smells so good!”
Han Cheng called some people and worked with him to peel the fried tung oil fruits.
Different from when it was not fried before, the newly fried tung oil fruit has a warm aroma.
Some people are sighing here while peeling the shells.
If Bigfoot hadn't eaten the tung oil fruit and was still lying on the bed right now, and Shenzi had told them over and over again that they couldn't eat these things, as eating them would poison people, these people would definitely have taken this delicious-smelling fruit.
Put it in your mouth...
At this moment, Wu was secretly putting something into his mouth, not tung oil fruit, but some sand that had cooled down by secretly prodding it.
Although Han Cheng has made it clear that the fried sand cannot be eaten, Wu is still excited by the scene he imagined of bringing back some sand from the river and frying it to eat whenever he is hungry.
.
So I secretly got some sand and put it in my mouth...
"Bah, bah..."
The witch was spitting out sand, and it turned out that it was just as the Son of God said, it was not delicious.
Watching the scene where the witch spit out sand made Han Cheng want to laugh again, and his face twitched a little.
In fact, when Wu secretly hid the sand in his hand, Han Cheng saw it. The reason why he didn't stop him was because Han Cheng felt that Wu's spirit of exploration was worthy of praise.
Although I am an experienced person, I am not an all-powerful person and I cannot do many things.
Under such circumstances, it is extremely important to cultivate new people and cultivate the exploration spirit of everyone in the tribe. Only in this way can the tribe develop better...
Han Cheng did not grind the peeled tung oil fruit directly with a stone, but planned to smash it with a stone mortar first.
Because compared to soybeans and peas, the tung oil fruit is too big and difficult to grind. It is best to mash it with a stone mortar first, and then grind it into powder with a stone mill.
"Boom! Boom!..."
Han Cheng did not let others do it, but he held the wooden pillar and pounded it there.
As he continued, 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, oil would faintly seep out, and the wood would faintly seep out.
When the stick is retracted, the oil will shrink back.
After mashing all the tung oil fruits he brought back, Han Cheng put them in a bowl and took them to a stone mill to grind them.
As the stone mill rotates in circles, these relatively crushed tung oil fruits are ground little by little and fall from the surroundings of the stone mill.
Looking at the ground tung oil fruit, Han Cheng's face didn't look very good.
Because the ground tung oil fruit was different from what he imagined.
In my impression, when grinding fried sesame seeds, the sesame seeds will directly turn into sesame paste, just like soy milk, and slowly flow down around the stone mill.
Now, although these ground tung oil fruits look shiny, what comes out is not paste, but a relatively loose powder-like state.
Damn it, this is unreasonable!
Grinding oil is the only way I can think of to get tung oil at this time, but now, it's like this!
Han Cheng's heart froze when he looked at the crushed tung oil fruit that fell into the groove around the stone mill and stayed there without moving.
There is no need to carry out the next step of grinding the oil. Han Chengji has already determined that it is basically impossible to get tung oil like grinding oil...
"Alas~"
Unwilling to give up, he put all the ground tung oil fruits into a clay pot with a sharp bottom. After sitting there for a long time and not a drop of oil appeared, Han Cheng finally gave up this futile practice and sat down on the wooden pier.
I couldn't help but let out a long breath.
It’s really frustrating to see the tung oil fruit right in front of you, but you can’t get the oil out.
From great joy to great sorrow, this kind of roller coaster-like psychological experience is really uncomfortable...
Dusk falls, time passes slowly, and the night becomes darker.
After Xiao Wandou and Bai Xuemei beside him fell asleep one after another, under the cover of night, Han Cheng took off all disguises, lay on the kang, looked at the dark roof, and worried about getting tung oil.
.
He has been thinking about this matter for a long time, his mind is in a mess, and he still has no clue.
After doing this for a while, he shook all the messy thoughts out of his mind and considered the matter from its most fundamental point.
The so-called oil extraction, to put it bluntly, means using enough pressure to squeeze out the oil contained in raw materials that can produce oil.
The oil-pressing machines of later generations were designed based on this principle.
Theoretically, as long as the space where the oil exists can be reduced as much as possible and enough pressure is applied, the oil can be squeezed out of the oil. It does not necessarily have to be the kind of squeezing that uses an electric belt in later generations.
Oil engine.
Moreover, in ancient times when there were no oil presses, there were vegetable oils, some of which were used for eating and some for lighting lamps.
No matter what it is used for, this clearly tells Han Cheng one thing, that is, the oil press that does not rely on the electric belt of later generations can still squeeze out oil!
In other words, there are other ways to extract oil.
Thinking along this line of thinking, after a while, Han Cheng sat up from the kang, fumbled to light the oil lamp, wrote the word "press" on the ground with a charcoal pen, and squatted there carefully.
look.
After watching this for a while, Han Cheng's face became increasingly happy.
If you look at the word "press" separately, it is just a "枞" plus an "acupoint".
This is very illustrative. It can be understood as using a tree stick to dig into another pit.
In addition, Han Cheng remembered that during the day today, when he smashed the fried tung oil fruits with a tree stick in a stone mortar, tung oil faintly emerged from the tung oil fruits with his force. Why not use oil pressing?
Machine, and the method of squeezing out the oil has vaguely emerged in Han Cheng's mind.
After thinking about this, there is one more thing that Han Cheng needs to solve, that is, how to make the oil squeezed out of the wooden stick flow out, instead of retracting the wooden stick and retracting it into the oil.
Today, when he pounded the stone mortar with a wooden stick, the moment he pounded it down hard, tung oil appeared faintly, and then it shrank back again.
What if instead of taking back the wooden stick, we continue to add wooden sticks inside and compress the space inside the stone mortar bit by bit, so that the squeezed out oil will not shrink back, right?
Many things are window paper, which can embarrass people to death when they don't think of solutions. But once you figure it out, your ideas will become smoother and smoother, and many other problems will be solved!
Just like Han Cheng now.
Squatting here, Han Cheng became more and more excited as he thought about it. After this excitement lasted for a while, it subsided a little.
The stone mortar is not suitable for making holes. Although the stone is hard enough, its toughness is not enough. If you fill the stone mortar with wooden sticks one by one and smash it hard, Han Cheng thinks that the stone mortar is very likely to
will be stretched open.
After all, when the tribe opened the stone, they also opened a gap and then used wooden stakes to prop it open.
If you don’t use stones to make a ‘hole’, then what should you use to make a ‘hole’?
After thinking about it for a while, Han Cheng's eyes once again fell on the word "squeeze" written by him.
After a moment, a look of surprise appeared on his face.
Oak is a very slow-growing tree. Because of its slow growth, the wood is very solid.
The character was not made randomly. When the character "press" was created, other trees were not selected, but oak wood was chosen. If you think about it a little deeper, you can realize the meaning contained in it.
This is the charm of Chinese characters!
Just from the structure of characters, we can learn a lot of things.
Not to mention the rest, just Han Cheng was thinking about oil extraction this time. If what he faced was not Chinese characters, but zigzag alphabet characters, he would never even think about eating these characters with some seasoning.
What tips do you get from the above.
After blowing out the lamp and lying on the kang for a long time, Han Chengdu felt no sleepiness. Over and over in his mind, he felt sincere admiration for the wisdom of his ancestors in creating characters...
"Come with me and let's chop down trees together!"
Early the next morning, Han Chengcheng called some people in the tribe to follow him to cause destruction.
He only fell asleep at midnight last night, and after waking up early today he was still full of energy. As expected, he is in high spirits during happy events.
Although everyone didn't understand why the Son of God called them and others to cut trees so early in the morning, the matters that the Son of God told him were naturally not discussed.
Han Cheng is no stranger to oak trees. There are oak trees growing on several hills near the river in his hometown. They were planted in the last century and have been planted for several decades.
None of these trees have grown up, because when they were first planted, they were used to prevent wind and sand and to serve as firewood.
Every year when winter comes, people who have free time start to cut it off and pull it back for firewood, so that it will sprout again in spring.
In Han Cheng's hometown, these trees are called "forests", and there are mainly two types. In fact, if you just look at the trunks, you can see too many differences. The biggest difference between the two is in the leaves.
The two trees actually have similar leaves, but one has much larger leaves than the other.
This kind of big leaves were called "Hu Ye" in the hometown of Han Cheng's later generations. When steaming steamed buns at home, Hu Ye was often used to cover the pot.
The steamed buns steamed in the Huyepu pot have a fragrance of leaves, which smells very good and is delicious, which is not found in the steamed buns sold in steamed bun shops.
Both types of trees will produce acorns when they grow up.
In Han Cheng's understanding, two trees that look very similar can be called oak trees, but in some places, when they say oak trees, they only refer to the tree with large leaves.
There are also these two kinds of trees around the Qingque tribe.
Acorns, before Han Cheng came here, were also a kind of fruit that the tribesmen were happy to collect during the winter.
"This is the only one!" Han Cheng pointed to an oak tree and said to the man holding the tree-cutting tool.
Unlike the forests in Han Cheng's hometown that were used as firewood gardens and had no chance to grow, these oak trees around the Qingque tribe grew tall enough.
After leaving the tribe for a few miles, it didn't take long for Han Cheng to fall in love with an oak tree, which was so big that two people couldn't hold it together.
If you want to squeeze out more oil at one time, the hole dug out on the trunk must be large, because only in this way can you put more tung oil fruits in at one time.
Correspondingly, the tree used to make tools must also be thick.
Immediately after Han Cheng gave the order, someone with a bronze ax tied to his waist jumped up to the tree and started cutting branches there.
This is to make the tree fall less quietly, cover a smaller area, and make it safer for people cutting wood below.
After almost every branch on the big tree was cut down, there were four people who often pulled big saws, working in groups of two, holding two large bronze saws that were usually used to cut wooden boards, one on the left and one on the left.
The one on the right is starting to saw.
The oak wood is solid, especially this old tree that is thick enough. In addition, the tribe uses bronze saws instead of bald-headed electric saws for logging, so I waited until almost noon the next day.
A big tree has to be completely knocked down.
After the big tree fell down, some people began to transport the cut branches to the tribe.
The thicker ones can be used to build houses, while the finer ones can be used to burn charcoal.
The men who pulled the big saw rested for a while, took over the re-sharpened saw, and continued to saw the thick tree, which mainly cut off the main trunk of the tree.
This work was not completely completed until the evening.
By the time everyone got the thick tree trunk back to the tribe, it was already noon on the third day.
Regarding how to make these tools for oil extraction, Han Cheng only had a preliminary idea and could only cross the river by feeling the stones.
After returning to the tribe, Han Chenggong began to let the people in the tribe start making tools according to his own understanding.
It was to dig out a round pit like a stone mortar vertically on the tree trunk lying on the ground.
After the round pit was taken out, ropes were tied tightly on both sides of the round pit. This was to prevent too many wooden wedges from being nailed in, which might stretch the tree trunk.
After completing these and the wooden stakes to be smashed inside, Han Chenggong poured the previously ground tung oil fruits into the pit, and then placed the prepared wooden stakes vertically in the pit.
Finally, after putting a few sticks in, Han Chenggong stopped.
Because after these wooden pillars were put in, part of the loose tung oil fruit powder immediately rose up under the pressure and could not be suppressed at all.
After Han Cheng thought about it, he stopped, pulled out the wooden stakes one by one, scooped out the tung oil fruit powder inside, wrapped it in fine linen cloth, and put it into the wooden "stone mortar" again.
Then continue to place wooden stakes inside.
These tree sticks pressed against the tung oil fruit powder wrapped in linen. The situation just now has slowed down a lot, but there is still some fruit powder that cannot be pressed.
Han Cheng could only stop his movements again and continue to think about solutions.
After a while, let Lai get a wooden board that is similar in shape and size to the wooden pit, put it inside, press it on the tung oil powder wrapped in linen, and then put the wooden stakes into the wooden pit again.
This time, because the wooden stakes were not directly pressed against the tung oil powder, but were placed on the wooden board that completely covered the tung oil powder below, this incomplete pressing did not happen again.
Han Cheng's face lit up when he saw this.
He himself had little knowledge of how to extract oil, so he could only experiment, discover problems in the process, and find ways to solve them, perfecting the method of extracting oil little by little.
So far, the progress seems to be good.
At first, the pit was large enough and it was easy to put stakes in it. However, as the number of stakes increased and the space inside became smaller and smaller, it became more difficult to place stakes in it.
Later on, I could only use a hammer to hit the inside, and this was the time when I was most energetic.
"Dong dong dong..."
As the hammer continued to swing, these wooden pillars were smashed and sank one after another, and the space under the wooden pit was continuously squeezed. The tung oil fruit pressed by the wooden board was wrapped. Under such squeezing, the volume shrank, and slowly
Leaking grease...
After seeing the squeezed oil through some gaps, Han Cheng was all smiles. After working for a few days, he finally saw tung oil. How could this make him unhappy? At the same time, this also proved his previous thinking.
correctness!
Han Cheng, who was not happy for long, soon encountered a new problem. This problem was that although the oil had been squeezed out, there was no way to get it out...
Because the wooden pit has basically been filled with wooden piles, there are few gaps, and it is impossible to get anything to scoop out the squeezed oil.
With no choice, Han Cheng could only turn the big tree trunk 90 degrees with great effort, making the opening parallel to the ground, and pour out the grease inside.
Not much was poured out, just less than two bowls, and the oil yield was really not high.
But this was enough to make Han Cheng happy.
But before Han Cheng could be happy for long, a new and extremely fatal problem appeared again, that is, the wooden stakes that were stuffed into the wooden pit one by one could not be taken out!
You know, in order to put enough pressure on the tung oil fruit powder below to squeeze out the oil, these wooden stakes were smashed into it one by one with a bronze hammer.
You used so much force when nailing it in, how can it be so easy to pull it out now?
Lai and others tried for a while, but there was nothing they could do.
Han Cheng's face twitched as he looked at the wooden pit, which was nailed with wooden stakes that were short on the outside and high in the middle, like the plastic bucket filled with bamboo sticks at the door of the Fatal Bunch.
The problem of oil not leaking out automatically is easy to solve. You just need to make some more small holes at the bottom or on both sides near the bottom.
It's a big problem that the sticks driven in can't be taken out.
You know, it took them nearly two days to dig out this wooden pit that was like a stone mortar. Now it's good that it has become a disposable item...
Moreover, this wooden pit is still too shallow and too small, and it cannot accommodate enough tung oil fruit powder at one time. According to the current situation, if oil is pressed in this way, when there is sufficient tung oil fruit powder, such a pit can at most
It can only produce about five or six kilograms of tung oil. The efficiency is really low and it is not cost-effective to produce it.
However, this tree is already too big for two people to hug. It would be very troublesome to find a bigger tree and carry out such an operation again...
