Gu Yi couldn't help but roar, and blasted away the miners who were like the children waiting in line to ride the Ferris wheel, leaving only Pin Bao with one of his subordinates to be in charge of the mill, and they didn't need their efforts, just pour the unpeeled millet into it, and then sweep out the good ones, two people are enough to take care of ten stone mortars and donkey heads.

But don't wait for a while, the pin will come to Gu Yi in a panic, the speed of the hydraulic mill rice is too fast, ten stone mortars are used at the same time, not long to scoop out a lot of millet rice, Gu Yi had to order a temporary shutdown, this is a typical productivity over the demand of the embodiment.

Moreover, because the millet is still mixed with millet bran, it cannot be used directly, and it has to go through the process of blowing wind to remove the bran before it can come in handy, but how to separate the millet bran from the mountains of millet has become a problem.

If in the outside world, using the principle of heavy rice and light bran, and using the wind to remove the millet bran mixed in the millet rice, although the efficiency is a little slower, it can be regarded as a way, but in this deep well-like hollow valley, there is not even a trace of wind, then it is still a fart? You can't blow slowly with your mouth, right?

In desperation, Gu Yi had to invent a wooden "hand-cranked bran drum", this thing was very common in the countryside in ancient times, an octagonal spinning model wooden drum opened several windows, by shaking the wooden handle to rotate the wooden drum, so that the millet and millet bran poured into the interior rolled, as long as the shaking speed is controlled, you can easily use centrifugal force to separate the rice and bran.

The birth of the "hand-cranked bran drum" naturally surprised the miners, and their eyes looked at Gu Yi with three points of reverence, and they also worked the work assigned to him, obviously treating him as a master at the level of "Luban".

Gu Yi didn't care about these small things that he "invented" casually, as long as they could meet the requirements, but he didn't think that these things he made casually would have an impact on this world...

After all, what he is now holding is only sweet koji, and if he wants to make good wine, this thing alone is not enough, and the quality of koji is slowly accumulated, after hundreds of generations of elimination and selection, in order to select the best koji as a "seed koji" to pass on, in order to ensure that the quality of each winemaking is consistent.

This process is called "raising koji" in terms of the "professional terminology" inherited by Gu Yi from the old father of the small brewery in his hometown, and the reason is nothing more than cultivating the bacteria in the koji, Gu Yi is not like in the original world of the world, you can buy a good koji for a few cents, everything has to be slowly cultivated from scratch.

Therefore, this led to Gu Yi not so much making wine as experimenting, and all the large and small pottery jars bought from [Shuiwatun] came in handy, steaming the processed millet rice, adding koji, mixing it with water, putting it into the altar, and sealing the cellar.

Fortunately, he now has a lot of helpers under his command, and he can do the work with his mouth open, otherwise he would not be able to do such a large-scale experiment alone.

When the mouth of the head, the running leg at the bottom, including Ge Qiao, everyone was turned around by the group under his command, and he was not idle for a moment, and he himself held a pile of leather paper bound booklets, and used a "pencil" sharpened into a woman's eyebrows Qingdai, and constantly wrote and painted on the book to make various records.

After finishing the wine-making work, without waiting for everyone to breathe a sigh of relief, Gu Yi found a job for everyone to do, this time, they bought back a large amount of brine clay, packed in straw bags and piled up under the shed, if they eat, it is enough to make more than 100 of them into mummies.

After some "market research", Gu Yi found that there was an extreme "lack of salt" in this world, and even those high-ranking officials and nobles also lived by eating natural salt crystals, which was undoubtedly a way to make money for Gu Yi.

The brine is diluted with water, the salt contained in it is filtered out, the impurities are adsorbed with specially fired charcoal, and then the filter made of coarse to fine quartz sand and layers of brocade cloth is used for multiple filtration.

After the last one, a cauldron was erected, black stone stewed crystals were added, and pure snow-white salt grains were obtained by boiling salt, which was the so-called "ice brine snow crystal" by the dignitaries and nobles in this world, in fact, in Gu Yi's opinion, this thing was at most coarse salt, not even refined salt.

But for this world, even if it is the "high-grade halogen crystal" eaten by dignitaries and nobles, it is also astringent and bitter, and it is not good that it is mixed with gravel that can break off the big teeth, this kind of "ice halo snow crystal" that is as white as snow and as fine as sand is a strange thing that they have never heard of and never seen!

Seeing that Gu Yi was able to "refine" the "Ice Brine Snow Crystal" from the jet-black brine mud, not only those mines, but even the white people regarded it as a miracle, and almost didn't kneel down and kowtow to Gu Yi, the "Heavenly Master Immortal", which startled Gu Yi, and only after asking did he realize that salt is not just a seasoning he imagined for people in this world, but an extremely rare necessity for survival.

People don't have the strength to eat salt, and they will be weak and sick, but more than 90% of the ordinary people in this world are eating "light food", that is, the "original taste" without oil and salt.

Why do people in this world have a rich nature, but they only eat a few things?

The main reason is that they lack effective cooking methods and seasoning assistance, and most of the natural ingredients have the original taste, which is fishy and bitter in the mouth, and is not considered to be edible.

For ordinary people, salt is a nourishing medicine to increase body strength, drive away evil spirits and diseases, and for soldiers and people who rely on strength to eat, salt is a natural treasure to enhance their strength!

Before, Gu Yi took out a little salt foam filtered out of the halogen crystal from Ge Qiao, and convinced the Bai Min, Rou Servants, and Mao people, and took him as the leader, because salt is a thing, whether it is in the Bai Min's war team, Rou Servants, and Mao people's tribes, it is a rare material controlled by the chief, chief, and chief, and only when he makes meritorious service, will he get a little bit as a reward.

And as soon as Gu Yi met, he took out the "Ice Brine Snow Crystal" that they had never seen before and gave it to them to eat, which was equivalent to the behavior of the horse bones in Qianjin City, and it was enough for them to work for him, otherwise with the savagery of the soft servants and the brains of the hairy people who were not much smarter than the gorillas, how could they be so obedient and obedient under Gu Yi's hands?