Traveling through ancient times: Savages are hungry for food

Seven days later…

The tribesmen have been using stoves for a long time, whether for boiling water, heating, cooking, etc.

And every household enjoyed using it, and they would burn charcoal in the morning and evening when the weather was cool.

Of course, with a stove to vent the smoke outside the cave, it is also possible to burn ordinary firewood.

……

But the biggest thing these days is that the first batch of pottery jars are put into the kiln today!

A day ago, Sang Tian put the completely naturally dried pottery pots into the oven or kiln for firing.

……

Sang Tian first put the first batch of dried pottery jars into the kiln and closed the furnace door tightly.

The ignition material is charcoal.

The charcoal quickly heats up to around 200°C, and after 1-2 hours, most of the water in the pot evaporates.

In the enclosed space, the heat from the charcoal will continue to raise the temperature inside the furnace to around 800°C. This temperature is maintained for 2-3 hours to fully sinter the clay in the pot.

When the pottery pot is kept warm at around 800℃ for 1-2 hours, the structure of the pottery pot becomes more stable and stronger and more resistant to falling.

But be sure to note that the temperature cannot be too high! Otherwise it will affect the quality of the pottery.

And during the firing process of the pottery pot, whether the temperature rises or falls, you must avoid sudden cooling and heating! You must gradually heat up and cool down! Otherwise, sudden cooling and heating will cause the pottery pot to crack!

So every once in a while Sang Tian would open the wall door.

At this time, the pottery jar has been fully formed.

The charcoal in the stove has also burned out.

What you need to do at this time is to let the pot cool naturally to room temperature.

At the beginning, do not open the kiln door immediately. Wait two or three hours before opening the kiln door to speed up the cooling process.

Time is the best proof!

……

The length of cooling time depends on many factors, including the size, shape, thickness of the pot, the firing temperature, and the cooling method. Generally speaking, the cooling time needs to be between several hours and several days to ensure that the pot can cool slowly and evenly.

Because the pots are for daily use, they are relatively small. Pots that are too large will dissipate heat slowly.

Sang Tian personally supervised the thickness during production.

If it's too thick or too thin, you need to remake it! Thicker clay pots take longer to cool because it takes longer for the heat to transfer from the inside to the surface.

And this first batch of pottery jars only had about twenty pieces.

So all the pottery jars present were of ordinary thickness.

And the higher the firing temperature, the longer the cooling time. This is because high temperature will cause the structure inside the pot to change, and it will take longer to recover.

Sang Tian has strictly controlled the problem of overheating during the firing process, so there is no need to worry about this.

After five hours of cooling, Sang Tian used artificial intervention to cool down the room.

The tribesmen all rushed to fan the kiln.

Forced cooling methods such as fans and water cooling can be used, but be careful not to over-cool, so as not to cause the pot to deform!

……

The cooling time has exceeded twelve hours!

Now, it’s time to take the clay pot out of the oven.

All the tribesmen came to watch. They all wanted to know what this thing they had been busy making these days looked like!

The tribesmen surrounded the scene so tightly that no one could get out.

Sang Tian took out the fired pottery jars one by one.

The appearance of the pot is complete, with no obvious cracks, chips or blemishes.

There are some bubbles and color changes on the surface. These should be evenly distributed, except for the burn marks near the charcoal. This is normal and does not affect the overall appearance of the pot.

The color of the pottery pot is yellow-brown, and the color of the pottery pot is more natural, not too bright and dazzling.

The clay pot is relatively hard and has a smooth surface without any noticeable roughness. During the firing process, the clay undergoes chemical changes, becoming stronger and more durable.

When Sang Tian knocks on the pottery jar with his hand, it makes a crisp sound, which indicates that the texture of the pottery jar is relatively dense and it is well fired.

The firing of this pottery jar was very successful!

Sang Tian was very excited.

It's not just that I'm excited about Tianlang's successful production of pottery jars.

Another point is Sang Tian's greater discovery of his own abilities.

Sang Tian only knew the theory of these things and had never put them into practice.

Although there have been some problems during the operation, and I have been improving myself, the final results have always been very successful!

It's time to give yourself a thumbs up!

……

"Alright! This batch of pottery jars was fired very successfully!

You can use clay pots to store water, food, etc.!

Ceramic pots are breathable! This allows the food in the pot to stay fresh while also allowing moisture to evaporate, preventing the food from getting damp.

Sang Tian said in a sonorous and powerful voice.

Cang was the first to scoop up a pottery jar of water to show everyone. Although it was made of clay, it did not leak at all, and the water inside did not become turbid.

Everyone was shocked and thought it was magical!

"This is amazing! The soil didn't melt at all!"

"This is much better than holding water in a bamboo bucket! It won't leak at all!"

"Sang! Female among females! You are truly a cow!"

……

Sang Tian made the final inspection and trimming of the pottery jar, polishing the uneven edges of the jar.

No glaze for the time being.

Sang Tian: Do you think I don’t want to go? I don’t have the conditions!

Sang Tian placed the twenty or so pottery jars.

The tribesmen on duty today couldn't wait to put the second batch of naturally dried pottery jars in and fire them according to Sang Tian's method...

Everything is going on in an orderly manner.

"We are thriving and enjoying this..."