Welcome aboard Jazzlover!
All very good advice above.
I noticed that the one word missing from everyone's advice/solutions posted thus far is....
STEAM.
Generally speaking, the "mouth burn" is caused by the production of steam.
(
It can happen if you attempt to re-light the very bottom of your bowl, in an open draw pipe, as well. I'm sure most of us have sucked on an ember or two at one time or another. 8O )
Keeping that (steam) in mind, may aid you in avoiding it.
You will want to keep the ember as cool as possible.
Drying your tobacco will help with the moisture that is turned to steam.
But, slowing down, keeping the ember as small and cool as possible will reduce the amount of steam produced, and gurgle I might add.
Of course that is simply my opinion, and advice.
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