Saltpeter dissolves in water and absorbs a lot of heat. This is the principle of saltpeter making ice. Thanks to the experience of reading novels in the past, Liszt knows a lot of similar common sense.
And he also knew that saltpeter could be used repeatedly.
"Saltpeter is a magical substance that can dissolve in water and then make the water very cold until it freezes." Liszt directed the valet to pour the white powder into the basin.
Then you can see the powder gradually melting.
Tom put his finger into the water and shouted in surprise, "Master, Master, the water, the water has really become cold, it's so cold!"
Gortai squeezed Tom away, curious and hesitant, and finally put his finger in. "It is indeed much cooler than before, Liszt, is this a magician's method? I once saw a magician who was good at ice magic. He always made a lot of ice cubes to make money in the summer."
However, after waiting for a while, the water only cooled down and did not freeze.
"Liszt, why didn't it turn into ice?"
"Teacher Gortai, a little powder of saltpeter is not enough to make ice. Now it is just to prove that they are indeed saltpeter." Liszt smiled faintly, "Then, while crushing the rocks, collect all the saltpeter and send it to the castle. Don't leave any behind."
"Okay, I look forward to the time when you make ice cubes. Ice in summer is the enjoyment that nobles should have."
Tomorrow is the Seagoing Festival, and the castle will hold a banquet.
night.
Looking at the saltpeter powder collected in a day, which was enough to make a wooden barrel, Liszt excitedly directed the servants to start making real saltpeter ice.
Saltpeter dissolves in water and absorbs heat, turning the water into ice.
However, ice water that directly melts saltpeter is toxic, so you need to prepare a vat and a copper basin with good thermal conductivity. Put water in the vat, put water in the copper basin, and put the copper basin into the vat. Pour the saltpeter into the vat water, wait for it to dissolve, absorb heat, and turn the water into ice.
Because the saltpeter powder prepared is sufficient, the dissolution and endothermic effect is super strong.
Within a moment, the water in the jar began to slowly condense, and after a while, even the water in the copper basin began to freeze.
"It's freezing!"
"It's really freezing!"
"A magical scene, this is the method of the legendary alchemist!"
Marcus, Gortai, Isaiah, and Blair, who were watching on the sidelines, were all amazed. In their impression, ice was only available in winter, and nobles built ice cellars so that they could enjoy the refreshing ice brought by ice in summer. But ice cellars were a luxury, and only wealthy lords could organize a huge ice mining team in winter to dig ice cubes from rivers and lakes.
A down-and-out nobleman like Gortai can only try a few ice cubes at Tulip Castle every year.
Marcus, Blair, Isaiah are not even qualified to taste Xia Bing.
Liszt was equally excited. He had heard of using saltpeter to make ice, but this was his first time making it. Seeing water turn into ice with his own eyes was a shocking feeling.
"Master, it's frozen." Thomas surrounded the vat, his eyes shining.
"Get the ice." Liszt nodded, keeping a reserved aristocratic smile on his face, calm and calm, "Cut the ice into small pieces. Each of the gentlemen and ladies can get a small piece of ice tonight."
Carter whispered, "Master, ice is too expensive, so the servants don't need it, right?"
"It doesn't matter, Mr. Carter, just do as I say."
"Yes, sir, for your generosity, I would like to express my most sincere respect to you on behalf of all the servants." Carter bowed and saluted. It was indeed the servants' good fortune to meet a generous noble master.
After saying that, he directed Thomas to carry the ice cubes in the copper basin and enter the kitchen to start cutting.
Liszt called Tom again, "Keep this vat of ice water well. When the sun comes out tomorrow, take it out to dry. Don't waste a drop."
Gortai was puzzled. "Liszt, what's the point? These ices are just for use, why do you need to dry them in the sun?"
"Saltpeter directly melts the frozen ice. Of course it can be used, but it cannot be eaten. If you dry it out in the sun, it will turn into saltpeter, and you can use it repeatedly to make ice."
"Is saltpeter so magical?"
"It's far more magical than you imagine." Liszt thought to himself - if he found sulfur, he would dare to prepare black powder now.
Perhaps compared to yellow gunpowder, black gunpowder is not strictly an explosive, but it is still a flammable and explosive high-explosive item. It is suitable for making some earth bombs, and its power is at least not weaker than the magic released by low-level monsters. When used in low-level battles, it can still have a surprising effect.
Of course, in a world where dragons, elves and Magic Power exist, black powder has no decisive advantage.
The dishes at the dinner were not rich, and Liszt was reluctant to entertain Gortai and others every day. The materials in the castle were his personal guarantee for a luxurious life.
The drinks are also quite poor, they are all sour beers without hops.
But the atmosphere of the banquet was high, because everyone had a few crushed ice cubes in their glasses. The ice cubes melted, making the whole glass of beer cold. After one gulp, the whole person was instantly refreshed and refreshed. In this increasingly hot weather, it was definitely the best enjoyment.
"Liszt, I propose a drink for the cold beer!" Gortai raised the cup happily.
Liszt picked up the cup and responded, "Then cheers to the cold beer."
"Cheers!"
Gudong, gudong, the sound of gulping beer could be heard on the dining table.
kitchen.
On the dining table.
Erin continued to fiddle with the ice cubes on the plate with a spoon, making a clattering sound.
Abby Spoon couldn't help scolding. "Erin, stop making that unpleasant sound. Eat the ice cubes that I gave you as a reward!"
"I prefer watching the ice cubes melt than eating them. Mrs. Abby, don't you feel that the temperature in the kitchen has dropped today?" Erin· continued to fiddle with the ice cubes with four fingers and looked at Lily·Bathing in the next seat, "Little Lily, do you feel it?"
"Of course, there are ice cubes on each of our plates." As she said that, Little Lily stuck out her tongue and licked the ice cubes on the spoon. She was reluctant to eat it all at once.
The ice cubes have no taste, but they are cool and feel very comfortable, which makes the whole person's heat subside.
Abi said angrily, "Little Lily, I don't allow you and Erin to talk during meals. Your clumsiness and rudeness will only bring shame to the kitchen!"
"Ahem."
The butler Carter bit the ice cubes in his mouth hard. He is already over fifty years old, but his teeth are still very good. "Mrs. Abby, they are still children, so it would be a little rude to allow them to eat."
"Mr. Carter, it's not that I don't listen to your orders, but you shouldn't indulge them, they will be lawless. Their clumsiness is disappointing enough. If they can't learn a little etiquette, they will stay in the kitchen for the rest of their lives and will not be able to become maids upstairs." Abi said seriously.
Carter and Mosen looked at each other and they both knew that Abi was a good person with a hard mouth but a soft heart.
But Erin was obviously not convinced. "Mrs. Abby, I don't want to go upstairs. It's not comfortable upstairs at all. You have to be careful not to leave any footprints. I want to be a cook in the future, and I like working in the kitchen."
"You've got to give up on this!" Abi suddenly became furious, "With me in the kitchen, you will never want to be a cook. Little girl, remember, don't offend me!"
"But you will get old one day."
"Even if one day I am too old to work anymore, I will still be the cook. You have to listen to what I say!"