Let's explore a more modern and beautiful bonfire, not the conventional one.

It's unexpected.
The platform provided for better appearance
actually improved the efficiency of combustion.
Let's make it again.

It seems that the new air flow accelerated the combustion.
Let's pay more attention to the air flow.

The previous platform got too hot
and you got burned when you were cleaning it up.
Let's change the material and try again.

By changing the material,
the air flow changed and the way it burned changed as well.
Trial and error continues.

You saw the image of the ideal flames.
Now that you have a better idea of the flow of air
and the material of the platform, you can make these ideal flames.