At this moment, those thick logs have been inserted into the ground nearly a foot deep, and there are stone enclosures to fix them.

And above these thick logs, there is also a very thick log horizontally. On the log is an iron hoop.

The iron hoop is wrapped with thick and strong hemp rope and a simple pulley block.

The six large iron pots next to him are frying rapeseeds, a pot of 20 kilograms of rapeseeds.

Rely on the rotating spatula designed by Cheng Chubi, as long as it keeps turning.

So that the rapeseed can be heated evenly, and the rapeseed will not be fried.

The machines for frying rapeseeds that later generations saw in Xiaoyoufang were all electric.

Although there is no electricity in this era, there is no shortage of people in the old Cheng family.

With a vote, the young and old men talked about it. Li Ke felt that the cigarette was so big, indicating that the rapeseed might be oily.

The Li Dezheng is like a bar, saying that the frying speed is too slow. As for whether there will be oil, it is difficult to say.

Fang Jun on the side urged the two to simply take a gamble, and he was the middleman.

Cheng Chubi has no time to deal with these three idlers and vagrants.

The three vertical press oil presses were quickly completed with the concerted efforts of the Cheng family, who had a fat body and strong body.

After the rapeseed over there was fried, I copied it and dumped it into the groove of the stone, a trough of about 30 or 40 kilograms of rapeseed.

The few people who could just talk nonsense finally came over, wanting to see the birth of rapeseed oil with their own eyes.

Cheng Chubi picked up a round iron plate that was tightly seamed with the stone trough and placed it on top of the steaming rapeseed.

The two Cheng family members hoisted the polished stone column through the pulley block.

Cheng Chubi personally stood on the stone platform to adjust the position.

As they slowly let go, everyone was staring at the people in the barrel placed below.

I saw liquid dripping out, very quickly. Pour down like spring water...

From below, you can see the clear rapeseed oil pouring out from below.

Li Ke, Li Dezheng and Fang Jun all took a deep breath, in the rich aroma of rapeseed oil.

There is a refreshing plant, and even a hint of **** blossoms.

It is completely different from the scent of sesame oil.

Li Dezheng's mouth exaggeratedly grinned to the boss, and it took a long time to look at Cheng Chubi and ask the question that had been holding back for a long time.

"It's really out of oil... Brother Chu Bi, how do you know this thing can out of oil?"

"Try it, try it bravely, and always think of a way to get results."

"I knew before that sesame seeds can be used to squeeze oil, and castor beans can also be used to squeeze oil. Since they are all seeds, then this rapeseed may be able to produce oil.

So I bought some rapeseeds and tried them after they were cooked, and found that rapeseeds can really squeeze the oil. "

"A few days ago, Cheng just turned over the "Qi Min Yao Shu", Qi Min Yao Shu has about this rapeseed, um, it is called Brassica oleracea.

But this stuff is planted a lot in Shu, and it seems that it has begun to squeeze seeds for oil. "

This disappointed Cheng Chubi, who originally thought he was the inventor of rapeseed oil.

As a result, I did not expect that there was a record of planting and pressing rapeseed oil in "Qi Min Yao Shu" written by Jia Si Xie of the Northern Wei Dynasty.

This is the mother Cui after hearing Saburo's triumphant display, smiled and handed the book to Cheng Chubi.

Let him see the wisdom of the ancestors, which made Cheng Chubi embarrassed.

It seemed that he couldn't write all the books, but he had to read books. Cheng Chubi felt that he still had to read the various works of his ancestors when he had time.

So as not to have such an almost embarrassing joke again.

In addition, Cheng Chubi certainly wouldn't tell Li Desai that I grew up eating this rapeseed oil before crossing.

Vegetable oil is a treasure, and every household in the southwest is indispensable. When it comes to cooking, thousands of households will emit wisps of smoke.

With this pure vegetable oil scent, Cheng Chubi took a breath of intoxication.

New oil smells good, but if you smell it too much, it still makes people feel a little uncomfortable.

In addition, after the new oil is squeezed out, it needs to stand for at least 72 hours to facilitate the squeezing process.

The various residues that flow down with the grease sink to the bottom of the grease.

Uncle Guan Shiji looked at the third son who was standing on the stone platform and talking humorously.

Fang Jun leaned over, took a hard breath, and asked Cheng Chubi.

"Brother Chubi, can this oil be eaten?"

"This kind of oil is certainly edible, and using it to cook dishes will not grab the taste."

"Especially it is very easy to absorb and digest."

#####

Cheng Chubi jumped off the stone platform.

I looked carefully, but at this time, the oil output of rapeseed oil was not like before, it had become a small stream of water.

As it flows here, the second and third pressure oil presses are also started.

The more than 100 catties of rapeseed just fried have all been filled into the stone trough.

This pressure type is the most labor-saving and efficient, but the oil output rate is definitely not as good as that of the wooden horizontal manual oil extraction method.

But for Cheng Chubi, this is nothing at all, even if it doesn't produce so much oil.

Those rapeseed residues can be used to the best of their ability, and they are also good feed for pigs and chickens.

Wait until the oil output method of the first stone trough has changed from linear to dripping.

Cheng Chubi took out the oil drum~lightnovelpub.net~ and people copied it to a large scale and weighed it.

Soon, Uncle Ji exclaimed excitedly. "San Gongzi, it's weighed out, it's ten kilograms of oil in total."

When Cheng Chubi heard the excited shout of Uncle Ji, his face was dark.

"Ten catties...forty catties of rapeseed yielded ten catties of oil, that is to say, the oil yield rate is actually less than 30%..."

I have seen the small oil press of later generations, but the difference between ten catties of rapeseed is less than three and a half, which means that ten catties of rapeseed produce about three and a half catties.

However, considering that the later generations of rapeseed are all selected rapeseeds that have been cultivated for many generations.

There are about two and a half catties out of ten catties, which is already quite impressive, and there is no need to pursue too much.

The output of an acre of land is about one stone and three buckets, which is almost two hundred catties. Ten catties produce two and a half catties, and one acre of land can have fifty catties of oil.

One acre of rapeseed can’t get a pig, but it can get the fat of almost a fat pig, and even a bicycle.

Before Cheng Chubi made soap, the fat that a pig can cut is less than 50 catties. After all, the pig has only lean meat left and eats a fart.

Besides, in this era, sesame oil is the top grade among vegetable oils, and the price is expensive. After you make it yourself, part of this rapeseed oil is used for cooking.

Some of them can continue to realize their dream of being the king of daily chemicals.

Besides, Cheng Chubi has asked Fu Shu, the housekeeper, to send someone to central Shu to buy rapeseed.

Now that there were already people planting them there, Cheng Chubi felt that he didn't need to continue wasting manpower and material resources.

Occasionally, it is very broad.