Indoors.
Jiang Ning pulled out a piece of red-hot charcoal.
From what he understood, red-hot charcoal was roughly 700 degrees.
If it was in the bellows furnace of a blacksmith's shop, the temperature could even reach nine hundred to one thousand degrees.
In an environment with sufficient oxygen, it could even reach over one thousand degrees.
This was also why iron smelting chose charcoal as fuel—because charcoal, as a fuel, burned at an extremely high temperature.
Then, he picked up the red-hot charcoal with his bare hand.
"It really isn't hot!" Looking at the charcoal in his hand, which was like a red date, a trace of surprise could not help but show in his eyes.
At this moment, the charcoal that had long since burned red gave him the feeling of Warm Jade in his hand.
There was only a faint warmth, without the slightest hint of searing pain.
After playing with the charcoal in his hand for a while, the temperature of the charcoal gradually lowered as well, and Jiang Ning's gaze once again fell on the stove before him.
In the stove before him, with the charcoal burning fully, the fire was blazing strong.
"Let's try again!"
Jiang Ning thought to himself.
Then.
He lowered his head and blew at the Charcoal Stove.
Crackling—
Sparks immediately burst from the Charcoal Stove, and the fire grew even stronger.
Looking at the rising flames, Jiang Ning nodded in satisfaction.
Then he reached his finger into the flames released by the fully burning charcoal.
The next moment.
He saw a magical scene.
When his finger touched the flames, it was as if there were a layer of clothing between his flesh that the naked eye could not see; the flames always remained a tiny distance from his body.
At the