"Beetroot?" Su Lun was slightly stunned, and then asked, "Where did you find it, and is there anything else?"

"It's on the dirt slope over there, and there's quite a bit there. Bard said, pointing to a dirt slope not far away.

The two of them came to the dirt slope, and a large area of lush plants grew on the soil slope, which looked a bit like radishes grown in their hometown in their previous life.

"Sir, it's this beetroot, which my mother found when we used to be in the Giant Bear Tribe. Bard dug out a beetroot and handed it to Suren.

Reaching out to take the beetroot, Su Lun shook off the soil on it, the beetroot looked like a short and fat radish, the root was pointy, and the skin was red, after cleaning it with water, Su Lun cut off a small piece and tasted it, and a sweet fill instantly filled his mouth.

"It's so sweet. Su Lun said in surprise that the sweetness of this beetroot was very high, much sweeter than the sugar cane he had eaten in his previous life.

He didn't dare to confirm it when he drank the beet soup just now, but after tasting it himself, he finally determined that these beetroots were the beets of his previous life, and this kind of beet was widely cultivated in the north, in addition to being used as a vegetable, its biggest role was to squeeze sugar.

Sugar was a complete luxury in ancient times, much more expensive than the price of salt, and there were not many ways to obtain sugar at that time, except for some fruits, only sugar was obtained from honey. There are no railways, no cars, no highways and high-speed trains, and fruits are not easy to preserve, so it is not easy to eat fruits.

When I was in Karon City in the south, in addition to some local fruits, there were only some preserved fruits from the desert kingdom, such as sand dates, such as raisins, etc. Of course, there is also white sugar and honey, but the amount of white sugar is very small and very expensive. These white sugars are shipped from the south, and the amount is pitifully small every year.

The sugar extraction process of this era was still very primitive, and the sugar cane used in the south was used to extract sugar, and the color of the sugar was reddish-brown, and the amount of white sugar was even less.

Suren found sugar beets here, as long as they were planted on a large scale, his domain would produce a large amount of white sugar every year, although compared to salt, white sugar was not a necessity, or even a luxury, but for the nobility, these white sugar were a common item.

In fact, there is not much difference between white sugar and brown sugar, and the sugar content in it is also similar, but the taste of brown sugar is not as good as white sugar, and it has some bitterness in it. Therefore, there is a big difference between the price of brown sugar and white sugar, and the nobles can only use white sugar to entertain guests.

If brown sugar is used to entertain guests, if this spreads, it will be laughed at in the entire aristocratic circle.

It is said that the white sugar produced by the alliance of city-states in the south was made with the help of the power of sorcerers, and most of the white sugar produced in other places was also the same, but Suren knew a way to make white sugar from brown sugar. The color of brown sugar and white sugar is different because there are impurities in it, as long as the impurities in the brown sugar are removed, the brown sugar becomes white sugar.

In this era, there is no good way for humans to get rid of impurities, but Suren knows a simple and effective way to filter out impurities in brown sugar.

"Go and call everyone and collect the beetroot here. Su Lun put down the beetroot in his hand and ordered directly.

Soon all the beets were collected, these beets have been growing here for a long time, many of them have already produced seeds, and Suren has also collected all these beet seeds, and he is going to grow beets in a large area in the territory.

It took three hours for all the beets on this hillside to be collected, and the entire hillside was already pitted, and a total of four or five hundred catties of beets were harvested, as well as a bag of beet seeds. After collecting the beets, Suren did not continue to explore, and returned to the town with the group.

As soon as he returned to the town, Suren called several craftsmen over to prepare various tools for squeezing sugar. The sugar extraction process is not difficult, and under the guidance of Suren, several craftsmen did not spend much effort to make a sugar pressing machine, which is actually improved by an oil press.

The beetroot is washed and cut into small pieces and put into the machine for juicing, as the machine runs, after a while, a stream of red juice flows out, these juices contain a lot of sugar, the common way to prepare is to filter out the impurities that can be seen in it and then heat the sugar water to obtain sugar.

Having two barbarian warriors spin the machine, the sugar water kept oozing out, and soon a bucket was filled. Su Lun reached out and dipped it in the sugar water and put it in his mouth, the sweetness was very strong.

In this way, only brown sugar is produced, and Suren must adopt another filtration method if he wants to make white sugar.

In his previous life, when he was in school, he knew that activated carbon is a widely used filter material, and the filtration effect of this material is very good. It's just that although Su Lun knows that activated carbon has a good filtration effect, he doesn't know how activated carbon is made.

Even if I studied it when I was in school before, I have long forgotten it after so many years. All he remembers is that activated charcoal is made from wood that has been carbonized. Although he didn't know how to make activated charcoal, he still knew how to make charcoal, and now charcoal is used for steelmaking every day in the territory.

Although charcoal is not as effective as activated carbon, it can also be filtered, so let people go to the kiln factory to transport a car of charcoal, and then let the workers crush the charcoal into fine particles, and then rinse these particles with clean water.

On one hand, he directs the barbarians to squeeze the sugar water, and on the other hand, he directs the others to make charcoal pellets.

After rinsing the charcoal and drying it, Suren got a bunch of small black pellets. Next, pour these black charcoal particles directly into the near-red sugar water and stir.

When the time came to witness the miracle, I saw that the original reddish-brown sugar water continued to fade in color during the mixing process, and soon the color became clear.

Several barbarians next to him looked at Su Lun's operation stupidly, and they couldn't figure out why after adding those black things to the brown sugar water, the sugar water became transparent.

Seeing that the sugar water became transparent, Su Lun couldn't help but smirk, it seemed that his method had succeeded.

"Hurry up and work, don't steal food!" The two barbarians took advantage of Su Lun's smirk, secretly reached into the bucket, scooped a spoonful of sugar water, and drank it quickly. Su Lun picked up the spoon and hit the two of them twice on the head.

The two barbarians laughed, and then went back to work.

ps: Thank you for knowing the 500 starting coins for the reward, thank you for the 100 starting coins for the 20171029171803911 book friends, and thank you for the 100 starting coins for the ancient navigators of the book friends.