Magic Mountain needs to spend time on military affairs, so there are many other things that he wants Jenny to do.

No matter how powerful the military is, food is fundamental.

Milk is a grain, or a very nutritious food.

Every year, the outbreak of milk has nothing to do with strangers.

It is purely caused by the lack of sterilization of milk and the growth of germs.

Milk is infected with many pathogens, and it is stronger when it is hot.

Flies, milk buckets, these can bring germs, but the main thing is when milking.

In the time of semi-animal husbandry and semi-farming, there were many diseases of all kinds, and there were many deaths.

In the later civilizations, in the primitive and backward era, the diseases were helpless, such as the inflammation of the wound. A very wound, once inflamed, can kill a person, or cut off an infected hand or foot.

For diseases caused by milk, it is only necessary to scientifically sterilize the milk.

One of the best ways to do this is to use pasteurization.

Pasteurization requires the use of a thermometer.

However, in this civilization of animal husbandry and farming, thermometers are very professional things in bachelors, and they have not yet been popularized. Moshan has seen the thermometers used by the scholars, because there is no seal, due to the atmospheric pressure, the temperature will not be very accurate, and the fluctuation is relatively large.

Moshan decided to build his own thermometer.

The world already had mercury, and the scholars calcined the ore and replaced it with iron, which was insoluble in mercury. This kind of thing can be purchased at the school city through the bachelor.

Magic Mountain decided to use mercury as an alternative to water or alcohol. The thermometers used by scholars in this world are made of water or alcohol. And the temperature units and data are self-contained, and no degrees Celsius is used.

The group came to the kitchen.

Ice is stored in the kitchen's underground warehouse.

In this magical world, the technology of grain storage is perfect.

This is due to the season.

A winter, maybe three to ten years or more. In the cold winter, human food production almost completely stopped, relying on the grain stored by households in spring, summer and autumn.

If food is to be stored for a decade, or even longer, it requires the use of storage technology.

Among the bachelors in the old town school, there are special bachelors who study grain storage technology, and have formed a very advanced set of knowledge.

The most basic point of storage technology is low temperature.

The lower the temperature, the lower the likelihood of mold in the grain.

In the underground warehouse of the Earl's house, ice cubes were stored.

This is also one of the delicious ways to drink on a hot day.

The Magic Mountain asked the servant to fetch ice, break it up, and add a small amount of water.

He chose the narrowest of several glass tubes.

He's just doing a demonstration here and telling Jenny how the thermometer works. After Jenny studied, she would go to the glass factory to order a batch of thermometers, and through Master Assaph, she would buy some mercury from the school city to make the thermometer temperature medium.

Magic Mountain added a small amount of water to the glass tube.

Then put the glass tube in ice water.

"We set the temperature of the ice water to be zero. Magic Mountain told Jenny.

Earl Gavin and Madame Hibell saw it in a fog.

They thought they would understand if they let Maester Asha see it.

Magic Mountain hopes that after Jenny understands the principle, he will go and tell the bachelor Asaph, and together with Assaph, make the first mercury thermometers in Crag Rock City. Asaph's expertise will help Janice, and Janie will also help Asaph's maestro after learning about the Magic Mountain from here.

Magic Mountain glued paint with a quill and made a mark on the glass tube: "This means zero degrees." ”

Objects have the principle of thermal expansion and contraction, and the thermometer uses this principle. Of course, the atmospheric pressure in the glass tube will also be taken into account, so the magic mountain needs to be sealed with a thermometer, and this is left to ASAP and the glass manufacturer to complete.

The temperature requirements for pasteurization have a range of about 6 degrees to 70 degrees, and there is no problem with some slight errors in the accuracy of the thermometer.

The temperature of ice water is specified at zero degrees, which is easy to understand.

Jenny said she got it.

"Heat this ice water until it boils. Magic Mountain said.

So the servant began to heat up, and the water in the glass tube in the water rose as the temperature rose until the water was boiled.

"The temperature of boiling water is 100 degrees. Magic Mountain said. He marked where the water in the glass tube stopped.

"Ice water is zero, boiling water is 100 degrees. Magic Mountain pointed to these two signs, "We started at fifty degrees and marked upwards. ”

Moshan motioned to the servant to find a piece of line, quantify a line from zero to 100 degrees, and then fold the line in half: "Jane, the length of the folded line is from zero to fifty degrees. ”

Half of the fold of the line segment is fifty degrees long at the scale position.

The Magic Mountain marks a position of fifty degrees.

"In this way, a thermometer is made. ”

Jenny nodded, "Sir Gregor, it's easy, and then!"

"As long as the zero degree and 100 degrees are accurate, the other degrees will be accurate, so zero degrees and 100 degrees, you have time to repeat the trial and error with Master Asaph. ”

"Good!"

"Master Asaph is knowledgeable about water thermometers and alcohol thermometers, but I would like you and Master Asaph to go to the glass factory to order a batch of mercury thermometers, the glass tube needs to be sealed, my suggestion, before the glass tube is sealed, the air in the glass tube is expelled by a heating method that is 100 degrees higher than the boiling water. ”

"I remember!" said Jenny, "what about when the thermometer is ready?"

"We can use a thermometer to control a certain temperature to heat the milk, kill the germs in the milk, and then through scientific processing methods, the disease-causing milk can be drunk, and can be made into cheese, all kinds of milk products, sold to the people of Rock City, and of course, it is also a good nutrition for the soldiers after training. ”

Janine looked at her father and mother, and Count Gavin and Mrs. Hibell looked at each other, feeling as if they were listening to the priest's prayers in the church, and they didn't understand anything at all.

"Make a thermometer first, and when it's done, I'll teach you how to heat up the unclean milk and then cool it sharply, and then you can use your Reese cat to test it to see if you can drink the milk that has been sterilized. ”

"What did you say?" said Jenny.

"Of course, wild dogs, domestic dogs, or other animals are fine. Demon Mountain smiled slightly.

"Where's the sour milk?"

"You can give it a try, but you need to strain the milk a few times before you can try it. ”

In this world, milk hygiene is a problem, and when milking cows, the hands of the servants and the 'mouths' of the milk itself are not clean. This must also be corrected.

In the eyes of the Earl and the Countess for no apparent reason, the Demon Mountain calmly dropped the things, as long as Jenny understood. It doesn't matter if Jenny doesn't understand, as long as she remembers the way. As long as the thermometer is done, take it back and try it with ice water and boiling water, you will know the error of accuracy, and then disinfect the milk according to the pasteurization method.

In this world, people usually drink milk and often cause diseases, but it is not as severe and common as July and August, and there will always be an epidemic disease in a few years because of the growth of milk bacteria.

There are many kinds of pasteurization procedures, and Magic Mountain chooses only one of them: heat the milk to 6~65 degrees, up to 70 degrees, and keep it for 0 minutes. Using this method, it can kill various pathogenic bacteria in milk, and only some thermophilic bacteria, heat-resistant bacteria and spores remain after sterilization, but most of these bacteria are lactic acid bacteria, which are not only harmless to people but also beneficial to health.

Within a certain temperature range, the higher the temperature, the faster the bacteria will multiply, but if the temperature is too high, above 7 degrees, the bacteria will start to die. Pasteurization is to use the characteristics of pathogens that are not heat-resistant, and kill them all with appropriate temperature and control of holding time. However, beneficial bacteria or bacterial spores are retained.

This sterilization method was in the civilized world before the Magic Mountain - Louis Pasteur - French microbiologist, chemist, and founder of modern microbiology. Just as Newton opened up classical mechanics, Pasteur opened up the field of microorganisms, and he was a giant of science. And the Magic Mountain, embarrassed, borrowed the shoulder of the scientific giant and stood for a moment.

That night, Count Gavin and Mrs. Hibell were talking in the bedroom about the past and present of the Magic Mountain and all kinds of rumors about him, and before they knew it, there was a white fish belly in the east, and in the big school field, the new training slogan and the military whistle sounded together, and before you knew it, the sky was dawning.

The Count and the Lady had no sleep.

Soon after, there was a knock on the door, and the voice of the scholar Asaph rang out: "Lord Count." ”

"Come in!" Count Gavin half-sat up from the bed, revealing the thick chest hair on his chest. Mrs. Hibell also half-sat up, covering her chest with a blanket, revealing a snow-white arm.

The couple did not shy away from the bachelor Asaph entering the bedroom, their habits were so rough and powerful.

"Earl, letter from Kleganedy. ”

Earl Gavin took the letter, and the wax seal on it was the crest of the Clegane family.

He took the letter in his hand and said, "Henceforth, the letter from Clegane will be sent directly to Sir Gregor." Just let me know afterwards and don't have to go through me again. ”

"Yes, Count!" said Master Asaph bowed and left.

Soon, on the Colonel's field, Magic Mountain received a letter from Fort Krigane. The letter was written by Master Harry, and it said that the notepad had secretly scratched his finger outside King's Landing, and had returned to the western realm, and was escorted back to Fort Klegan the next morning.

Finger has been captured and brought to the West.

It seems that Notepad has done a good job this time, he planned to lure his fingers out of the city to arrest him, and according to the letter, he did it.

The finger is a big deal, it is related to the fate of the western realm and the fate of the magic mountain itself in the future, this guy has to make good use of it, the Achilles heel of the finger is naturally to throw away the shame of the sheep earl and become a real nobleman.

Only by making good use of his fingers and secretly using the witch queen to drive Tywin away, the chances of the magic mountain to change its fate can become bigger and bigger.

The Magic Mountain decided at once that the training here would be given to Polivier Clegane and Rover Spicer, that Casterme's secret coinage would be given to Old Man Buz and his granddaughter, as well as Foulmouth and Renard, and that the thermometer and milk test would be handed over to Jenny and Master Asaph, and that he himself would have to rush back to Fort Klegane, where he would have to meet the Finger of Petyr Berish, who was known for his shrewdness and cunning.