How Does Smoke Behave In A Vacuum?

The man behind the Youtube channel "The King of Random" published a video on the internet these days, showing how smoke behaves in a vacuum. He closed various things in a container, sucked the air out of it, and then heated them with the help of a magnifying glass to the extent that they were burnt.

If you have ever wondered how smoke behaves in a vacuum, then you have an answer here!