SWIM have just done his first DMT extraction.
SWIM kept the first pull of 50mL naphtha in the freezer. Later It shows the snowy naphtha.
SWIM wanted to merge the snow, so He warmed the bottle in hot water. The naphtha went back to be clear (non-visible solute), but there was something new at the bottom: A yelow and translucent liquid. SWIM thought it was weird because his Snow wasnt yelow before doing it, actually the snow was very beautifull, and he thought he did a perfect first time job... until he saw this liquid...
SWIM put the bottle back in the freezer and is going bed... tomorrow He will take a look on his bottle... but he is going to sleep in a hurry because he thinks maybe he spoiled it all by warming the bottle, he thinks maybe his DMT got oxidized or merged with fats.

But What Do you think Happened?

As to what happened, I'm not sure.
I know though that when something like that happens to a FOAF, he'll FASA the hell out of his yellow goo to obtain DMT fumerate.
Then he'll take that fumerate and refreebase it with fresh lye, water, and naptha.
He notices alot of loss but, almost no yellow.

Err, just reread your post .
I'm gonna keep what I typed above and add, it sounds alot like what happens when people re-xtalize there DMT.
It could be fats or something that fell to the bottom of the solution.
Could be that your actual DMT is still floating about the naptha.

SWIM finds that just because DMT looks like snow, it isn't always once it's gathered together.
So what you had may very well have been some fatty DMT.

IDK though ... there may be better people than me to help you with this.

It's just the oils from the once crystal DMT. Should of just collected what was there, not sure why you heated it up again. Nothing would of been lost, though it will be interesting to see what happens in the end seen the bottom of the surface will be covered in oil thus not allowing the DMT to form..

SWIM awakes inthe morning, went to the freezer and saw the bottle...
He saw that the yelow liquid was still on the bottom, but It turned a hard shit, during the night more snow felt on the bottom, and this snow is clean and moves if He side the bottle, but the hard yelow snow doesnt, It is fixed to the bottom...

As It looks He told to me that he thinks that yelow snow is DMT too, but some yelow crap is fixing It... probably oils and fats as you said.

How can SWIM separate-wash-whatever that crap?
How can he know if It is dirty DMT or just oils?

i have read some more about recristalization and I think this shit is just the crapball mentioned there... So I will warm the bottle again; snow must disolve and crap must turn that pure liquid, then inmediatly I will siphon the naphta and leave the yelow liquid behind.

A last question: what must I do with the crap after that? keep it? Should I mix It with more naphta and use it for future extraction?

TNKs

Take the yellow stuff
Mix it with water and vineger(or something) to salt it.
Pull fats and oils with naptha/xylene/whatever, discard.
Add lye to water to freebase the DMT that remains.
Pull with naptha, evap down naptha to slight amount, freeze precip.

Added:
Or just FASA the yellow goo.
In SWIM's experiences, the fumaric comes out fairly clean which can then
be freebased too. Whatever way suits ya

Added again:
IF you do FASA it, don't evap your acetone.
Wait for the fumerate to collect and siphon the acetone off, or filter the solution.

By the way... I or i is SWIM's name...

Exellent idea!!! TNKs
A lot of enginery in all of this... Is more an art than a tech...

Err, just pointing out another edit to my post about the FASA ..