How can electrical charges be removed from an insulator, such as an electrified glass rod, with a torch on hand?

This result can really be done if you have the simplest conventional burner at hand.

And to do this is not as difficult as it might seem at first glance.

To remove electrical charges from the insulator, we need to run the heated insulator through the heated gases next to our burner.

After that, the electric charges will disappear.

This will happen because these very hot gases have many negative ions. And these same negative ions neutralize the charge of our wand.