"Boy, it's done."

"What? What's done, old man?

"It's a preserved food that the kid had me cook for a long time. I've made sure that the one I made two years ago stays edible without rotting. The experiment is a success."

"Oh, really? Are you sure it's not rotten, old man? I'm sorry about eating preserved food and breaking my stomach."

"Oh, no problem. However, if you have a Balkan surname, even if it's slightly rotten, you can safely eat it with [poison deactivation]."

"That may be true, but preserved foods aren't just for the Vulcans. Anyway, let me taste the finished product."

When I was working in the city of Fontana on the development of land in the kingdom, the old man came.

The transfer stone is now available to the old man thanks to the strength he has acquired in the current military reform.

So as soon as we heard the old man's report, we decided to jump into Vulcania.

The contents of my report were about preserved foods that I had been studying.

I've always wanted to think about and make this preserved food.

Originally, winter cold makes it difficult to secure food in winter.

Otherwise, most foods can only be consumed during seasonal periods, as there are essentially few ways to store them for the long term.

That's why I don't want to move my army in the winter.

Still, immediately after I built Vulcania, I used Fontana's magic Ice Spear to build a refrigerated warehouse.

There was a long track record of food preservation.

However, at best, it should be extended one season at a time.

I wanted to be able to store it for a longer period of time, which is why I wanted to be able to store it in a state where it can be eaten throughout the year.

So I decided to recall the information that I could use from the memory of my previous life.

One of them is said to have succeeded this time.

It was a very good way to store food in a state that could be eaten by simply opening a can of cans for several years.

"Yeah, the taste is strong, but this is fine. You can eat it, old man."

"How about this, kid? Soaked in the fruit you said. It's sweet."

"Hmm, amazing. This looks like Liliner would love it."

"The taste hasn't fallen off in the can for years, and it hasn't spoiled. It also solved the previous problem of bursting cans. I can make this practical."

"That's good. It could be used as a military diet from storage in the event of disasters."

Me and my old man open cans in a lab in Southeast Vulcania to find out what they taste like.

The barca cans were fine and I succeeded in delivering the food I had stored for several years to my stomach.

It took quite a long experiment to get here.

Initially, there was no way for Balkans to steadily acquire metal to make cans.

In order to do this, we started researching bottles.

Although this bottle was somewhat successful, it is very fragile due to the characteristics of the bottle.

Especially glass may not have been commonly used in this area until now.

Even if I had made glass magically since I was a kid, people in this world who don't even have windows didn't even have the common sense that glass is fragile.

Especially the ordinary people.

Some dishes were basically made of wood.

I didn't understand the obvious thing about dropping a glass bottle on the ground and breaking it.

Otherwise, many bottles were broken due to the shaking of the truck during transportation.

It was conceivable that even if a bottle was made in Barca as a preserved food, if it were to be used as a military food, the soldiers from the peasants would probably break the bottle.

That's why we decided we should make cans that don't risk breaking.

It is also significant that a mine has been acquired as part of Bite Brother's territory.

Experiments for canning were being repeated in earnest because of the prospect of obtaining a certain amount of metal.

The cans are sealed with food in metal cans.

but metal can also be damaged by the effects of food in the can.

To do this, it was necessary to actually make cans to find out what metals would be less scratch-resistant.

Tin plating on steel seemed to be the best.

Tin was also harvested in the mine in Bite brother's territory, so it was just right.

And make a can and stuff it there.

Place food in cans in a heated, edible state and seal it.

By doing so, decomposition bacteria and the like are not generated, and thus it is possible to store them for several years.

As a precaution, I used Wash for both cans and food, so I should have kept it clean.

Still, there were many failures at first.

There was also an accident in which the can was damaged and burst.

But I managed to succeed.

Incidentally, I often saw small cans in my previous life, but this time the cans I made in Balka were big cans like a dough can.

This one is easier to make and contains a lot of food.

It was decided that it would be more convenient to use it for larger purposes than for personal use, as it was more for stockpiling in villages and towns or for military use.

Also, I wanted to make it easy to open in a pull-tab format if it is true, but it has not yet been technically made.

For this reason, they also make canisters on purpose.

"Okay, let's formally adopt the can for now. Let's experiment with how we can increase the variety of dishes."

"Okay. Let's increase the number of people for canning. If this happens, there will be fewer people starving to death."

"I hope so, but it won't be possible for a while. Manual canning seems to take a lot of work. Then maybe we should let them make something other than barca."

I also thought I would make a profit by hiding the finished canning method.

But unexpectedly, there was also the problem that the number could not be made by hand.

If so, you might want me to try making it on other lands.

It would be better if it were used as a military diet.

Thus, canning was largely started in the Kingdom of Fontana.

This led to the establishment of a more stable means of obtaining food than ever before.