Table salt, on earth, has been an essential flavoring agent for chefs since ancient times.

This is not only an indispensable taste in people's diets, but also an indispensable material component in the human body.

Because its main ingredient is sodium chloride, it is a neutral inorganic salt that shows the taste.

In the diet, its taste is salty, cold, with the functions of clearing heat and detoxifying, cooling blood and moistening dryness, nourishing the kidneys and laxative, killing insects and reducing inflammation, inducing vomiting and stopping diarrhea, etc., Luo Xiu crossed into this other world, and the first thing to do is this salt.

There can be no MSG and no sugar in the dish, but it is absolutely impossible to do without - salt.

Gollum!

After a while, the fresh water prepared by Luo Xiu's iron bucket was already boiling.

Luo Xiu directly picked up the seawater and poured it into the iron bucket along the clean towel that was responsible for filtering impurities on the iron bucket.

The first layer of towel filtration can remove impurities and sediment from the seawater.

Ye Weilan on the side looked curious, his brother ...... Where did you learn this weird thing?

"Brother, you ...... What are you?"

"Refining salt from seawater, you don't understand it, anyway, you just need to know that with this 'salt', our nine-story building will become the number one restaurant in Snow Moon City in a few days!"

Luo Xiu said quickly, Li Yuan on the side heard it sincerely, and couldn't help laughing: "The first big restaurant?

"I really don't know if it's better to say that you're ignorant, or is it arrogant?"

Li Yuan shook his head, but Luo Xiu just didn't hear it, and the sea water had been filtered all at this time.

The iron bucket continued to light a fire and boil.

"Brother, why do you keep talking nonsense today?"

Ye Weilan pursed his lips, and he was also a little disbelieving: "Big restaurant or something, you better get through the current difficulties first!"

Thinking of Li Yuan's cooking skills, which is a person who can really make delicious food, Ye Weilan has a headache when he thinks about it.

The surrounding neighbors watched Luo Xiu fiddle with that weird thing, and their faces showed incomprehension.

For Luo Xiu's words just now, he couldn't help but shake his head.

A big restaurant?

That's a restaurant where the chef is in charge, and the whole Snow Moon City...... There's only one of them!

How easy it is!

"Don't worry, the Nine-Fold Building will definitely stand in Snow Moon City again!"

When he said this, Luo Xiu's expression was ...... There is an affirmation that cannot be denied.

Ye Weilan was just about to lose two sentences when he saw his brother's expression...... There was no reason in my heart, but my heart was instantly settled.

At this time, my brother's face was full of indescribable charm.

That special flying confidence, combined with his slightly handsome face, actually has this indescribable attraction.

Of course, Ye Weilan knew that Luo Xiu was not his own brother, after all, how could there be brothers and sisters with different surnames...... So since she was a child, she has a very special emotion for Luo Xiu.

I can't say how I feel, but I just like it...... Stay with Luo Xiu.

"If my brother has a sense of taste and smell, he must be a great person, as powerful as his father!"

Xiao Nizi couldn't help but say in her heart, but at this time, the filtered water in the iron bucket was boiling.

The heating of this iron bucket is much faster than that of the iron in the previous life.

In almost a few minutes, a bucket of water can boil directly.

The magic of this world, Luo Xiu is less and less surprised...... After all, even cultivators have it, what else is impossible?!

Gollum!

The filtered water couldn't stop boiling, and when it was about to boil dry, Luo Xiu suddenly took the iron bucket off the stove and instantly poured it into the empty bucket prepared on the side.

Under the original iron bucket, there was suddenly some residue.

This is the second filter.

"Are you alright?"

Ye Weilan looked at the crystallized things floating in the empty bucket and couldn't help asking.

She had obviously completely forgotten about the poisonous seawater, and her mind was full of what Luo Xiu was going to do?!

"Not yet, the last process!"

"Final refinement!"

In this crystal, in fact, the first precipitation is salt, and the second precipitation is nitrate.

That is, nitrate!

When nitrate encounters oxygen, some will turn into nitrite, which is the main culprit of toxic seawater.

So, in the end, there is one more step - refinement.

What Luo Xiu uses is indirect evaporation!

Heat for five minutes, then stop the heat and wait for it to get cold. Heat for another five minutes, wait for it to cool again, heat again, and repeat the process until the water evaporates slowly...... What comes out of the analysis is the crystallization of table salt.

Of course, the best way is to air dry.

This is also the process of many seaside salt farms, and the salt produced in this way is truly perfect.

Rosho this method, chlorine and sodium...... The chemical combination is not too thorough, because ...... There are also some crystallization residues of nitrates.

However, Luo Xiu did it deliberately.

He used indirect evaporation, which can distinguish nitrates from table salt...... Because the solubility of nitrate is greatly affected by temperature, while the solubility of table salt, that is, sodium chloride, is less affected by temperature.

If the temperature is raised in this way, and then the temperature is properly cooled, the crystals obtained are mainly nitrates!

There is a chemical saturation issue involved here.

Luo Xiu carefully skimmed out the nitrate crystals.

"No wonder there is no salt in this world, the seawater in this world is even greater than the proportion of the previous life, and the nitrate content is ten times that of the previous life!"

Luo Xiu was a little staggered.

But...... In this case, it is even better.

A hint of coldness flashed in Luo Xiu's eyes, and he looked at Li Yuan, who was also busy at the desk, and a sneer couldn't help but appear on the corner of his mouth...... Destroying corpses and destroying traces, Luo Xiu will definitely settle accounts with Li Yuan.

Although some metal nitrates will turn into nitrite when heated by oxygen...... But this is also what Luo Xiu needs.

In about an hour, Luo Xiu's seawater refines table salt...... It's finally done.

"Done!"

Luo Xiu snapped his fingers, and there was a hint of satisfaction on his face.

"That's the ...... Table salt?"

Ye Weilan looked at the shiny white crystals that Luo Xiu carefully hung out, and asked there.

"Yes, taste it!"

Luo Xiu mischievously grabbed a handful and handed it to Ye Weilan's mouth......

"Huh?"

Ye Weilan looked at Luo Xiu's fingertips with some confusion, the handful of tasteless white crystals, Ye Weilan said that he was not curious, it was also fake: "Can ...... Can you eat it?"

"Of course!"

I couldn't help but say, Luo Xiu put the table salt ...... It was wiped on Ye Weilan's slightly moist lips.