"Boss, come to a bag of love herbal tea!" An adventurer habitually walked into the tavern and shouted.

"It's not in stock yet, I don't know what happened to the minotaurs, I haven't seen one since the last delivery," said the tavern owner.

"Oh, forget it~" The adventurer turned around in disappointment and was about to leave.

"Damn idiot, are you blind, don't you see that the one next to you is not herbal tea", a savage and rude voice sounded from the adventurer's side, "That's our Fang's Tower's Essien herbal tea, exactly according to the recipe, what's the matter, you're prejudiced against our Fang's Tower's things?" A man who had fallen behind said and stepped forward eagerly.

The adventurer shuddered, "Where?" How so? Ah, isn't this herbal tea, boss, you said earlier, I, I'll have a bag, how much is it~"

The tavern owner scolded secretly, with a smile on his face, "3 gold." "His chest is still faintly painful, a few days ago the brake people came to the door, insisting on selling their herbal tea by themselves, originally, this is not a big deal, but to the way of settlement is a big pit, the Minotaur that herbal tea is supplied first, and then pay when the goods are sold out, and those that cannot be sold can be returned directly, but the brake people are not like this, they must pay for themselves before selling, and they don't bring returns, damn, they just defended a few words, and they were kicked, if it weren't for these bastards threatening to be at the door of their tavern every day in the future"Inspection", I won't give in so much.

The adventurer shuddered, "Uh, this~ here is 3 gold, let's have a bag." ”

After seeing that the adventurer had paid, he sat down at the table not far from the bar and continued to drink.

……

"Master, this is the drink you want", the butler respectfully brought a tray with an alchemy glass on it, and the brown liquid in the cup shook gently.

"Hmm~" The dwarf mage was thinking about something, answered casually and continued to ponder, then picked up the cup and habitually took a sip~

"Poof~ Damn idiot, what the hell is this, grass juice, how dare you take this kind of thing for me to drink! Chamberlain! The little dwarf immediately roared.

"Hold ~ I'm sorry, sir, I~ What's wrong with this?" The human steward was nervously overwhelmed.

"Damn, it's Thursday, and my drink today is love herbal tea, what the hell is this?" The little dwarf rinsed his mouth viciously with water.

"Master, the stock of love herbal tea in your warehouse is gone, and it was not available on the market as early as last week, this is another herbal tea on the market that I am looking for, it is said that it is strictly in accordance with the formula of love herbal tea, it is a product of the six-ring tower and the fangs of the tower, I didn't think much about it~ I, I'm sorry lord~"

"Forget it, it's hard for me to die, no, in order to comfort my wounded heart and suffering mouth, today I want to drink a glass of ice fire, butler, you hurry up and prepare!"

"Master, this~ yes, I'm going to prepare", the human butler was about to say something, when he suddenly noticed the dark expression on the dwarf's face, and hurriedly responded.

The little dwarf stopped talking, and stared silently at the cup of herbal tea on the table that he had taken a sip......

"These are some common metal smelting methods, it doesn't matter if you don't write them down, I compiled them into a booklet, and handed them to Siqin, you can borrow them from her, and there is, I have prepared several metal ores I mentioned, and when you have time, you can smelt them yourself, so that you can master the knowledge, the first step of forging, from ore to metal ingots, this part is so much for the time being, and then the second step, from metal ingots to the items we need......"

Leia sat at the round table in the courtyard, quietly drinking tea, looking at the snake girl who was sitting around Lin Ze listening to the class, and suddenly her ears moved, and she heard a slight sound of the door opening from the gate of the courtyard, oh, she is here.

"You'd better wait, Lin Ze is giving a lecture to the snake girls," Leia said softly.

"Oh? He's still a mentor, what are you talking about, I'll just come and listen to it", Ella sat down next to Leia casually, and took a clean quilt and poured tea to drink, this drink she drank last time, and her impression was quite good.

"There are many ways to process metal, here I only say the most common two, one is casting, one is forging, casting is very easy to understand, that is, the metal is melted, poured into the mold made in advance, which is more commonly used is the mud model method and wax mold method, forging is to heat the metal, and then hammer out the desired shape while it is hot, and then carry out appropriate heat treatment to make items, this you only need to know a rough idea, and then talk about it in detail after the smelting metal is successful."

"Teacher Lin Ze, I have a problem~" The little snake girl Maggie raised her hand high.

"Oh, little Maggie, you ask, what's the problem?"

"Teacher is like this, I have heard of this casting and forging before, casting looks obviously much simpler, and it is no problem to wait for a little cold before quenching or something, so why use more complex forging to make weapons, I also heard that many weapons are made using casting, and they are not worse than those forged weapons?"

Lin Ze nodded, "This question is a good question, it means that you have indeed thought about it carefully, originally this is something I am going to explain later, since you have asked it now, I will roughly say it, wait for me to find something to help explain it", Lin Ze bent down and looked around, and tore off a slender piece of grass at his feet, "In fact, forging is not as simple as it seems, just take a method called stacked forging in the forging process, this method is extremely common, you see......"

Ella listened with interest, this method of forging is indeed known to many blacksmiths, in the hands of the blacksmiths of the Nords, the metal weapons that have been repeatedly folded and forged are very popular with the warriors, but no matter how good the folding and forging skills are, they are not as good as the high-grade alchemy metal weapons.

"After understanding the folding method, you can imagine that if two different metal blocks are used to fold together, will there be two metal characteristics when forged, such as using a very hard metal and a flexible metal to fold and forge, not to make the weapon strong and not easy to break."

The snake girl nodded suddenly, it turned out that the forged thing had characteristics that this kind of casting did not have.

Lin Ze paused, hesitated, and continued, "You can try to think about it again, if, in the process of folding and forging, the strength of each hammer is the same, what will be the effect?" Is it possible to create a metal that is evenly stacked, and what does that look like after countless times of even stacking? Seeing the frowning and thoughtful expressions of several of the snake girls, Lin Ze added, "This metal has a common name, called bunched gold, that's right, it literally, a bunch of metal, have you ever eaten a large piece of beef, have you ever had the experience of tearing it along the texture of the muscles?" Another meaning of bunching gold is the metal that is put together like a bundle of muscles, and mastering the art of bunching gold is the symbol and standard of a master blacksmith. ”

Ella was dumbfounded when she heard this, Shu Jin? How can it be?