slcbdco
Brewer, Lobbyist, Vaporist
Along with his, I also occasionally just heat an empty chamber, and draw heavy for a few big empty hits. And keep the mouthpiece screen clean so you have better draws. It all helps keep it a bit cooler.
This is also a good practice and I do it also.
As for the recommendation "not" to blow into it, that is to try to prevent something getting logged in and causing the straight to blue. Once its happened blowing it out can fix it.