Sorry bout the delay.....study a necessary priority atm.
I already said that I was just drying it. Why did you repeat me? I just didn't want to sound like my chem professor when I explained it.
Well, from your initial post I got the impression you weren't sure whether you were producing something during the operation
I have no idea if this the freebase or some salt product.
I was merely reassuring that no change in the composition was occurring (apart from H2O loss).
I'm guessing it's HCl salt product, because upon smoking it burns instead of melting and vaporising.
If Meth-HCl is heated gently to just below it's temperature of decomposition, it will vapourize. This is why people smoke the HCl salt. If heated too quickly or much above ~135 deg C it will decompose, leaving some organic (tar) residue. This is why there's no boiling point listing for methamphetamine HCl. If it's contaminated, this (pyro-tar product) often happens even with gentle heating.
In regards to a love for water......
From Erowid:
Color photo of Methamphetamine crystals. Note the small drops of water forming due to the hygroscopic nature of the material.
(colour & underline added: p_d)
photo
Humidity can definitely affect dry meth if its exposed to moist air. If you live in a dry area, it may well be that, once dry, meth may not absorb any moisture. But I'd bet exposed crystal would be hard to stop going gluggy if outside on a foggy night, or inside a room so high in humidity water is running down the windows. A hot, rainy, summer party night has often seen long faces when trying to line up what was once powder or xtal.
It's quite possible paste could contain some water instead of, or as well as solvents and impurities. As said, many producers don't care as long as their stuff sells. I'm sure there's also those who don't realise the extra profit from turning goo into glass. It's so market driven, and many old timers who've always been content with second grade product are happy enough just to be able to get a regular supply of what they're used to.
Perhaps I've generalized a bit regarding what meth is or can be. It could be that your source is supreme in quality due to the cook having some degree of knowledge
and conscience, but I'd tend to question anything sold in good faith if the product happened to be heavier due to water (or worse). I suppose it could be as innocent as the preparation environment being damp, but anyway you look at it, it would seem a dodgy setup IMO.