Hey guys
Im currently in the process of evaporating my shellite before
I freeze percipitate following the lex tek and its taking quite
some time to evaporate down so my question is
What is the fastest way to do this?
At first i thought a hot bath then after a search i find
The DMT will probably oxidise if i do this so now i just have
a fan blowing on it but its still very slow.

Any faster ways?

I don't think oxidation should be too much of an issue while its still suspended in the solvent...more when the dmt on its own comes into contact with the air... don't take my word for it though.

patience .. no need to rush

Use less of it to start with and or increase the surface area by pouring into the largest dish/pan you can find.
I tried evaporating naphtha one time and ill never try it again

Fastest way would be a rotary evaporator, but I guess you dont have a couple thousand bucks spare ?

If your naphtha is taking long to evaporate, its probably a heavy fraction, meaning it has high boiling point... You can either just be patient, have it in a large dish/pan as mentioned above, use a bit of heat and fan, though indeed a bit of dmt can oxidize. The rate at which this oxidation happens is unknown, I can say from experience that I had times when I used a bit of heat and a fan and it all evapped nicely to leave good crystals, and other times where I had some goo at the end which refused to crystalize, possibly some n-oxide at least. If you dont care about how it looks, the goo is active too, you can infuse some herbs with it (weigh herbs before and after to know the weight of dmt and therefore dosage at the end).

Alternatively, you can salt out your naphtha by mixing 3x with a fourth of the naphtha volume in vinegar or another acidic solution, evaporate that acidic solution in a double boiler or low fire or similar (be careful at the end if youre not doing in double boiler so you dont burn it). Then you mix the goo that is left with sodium carbonate or calcium hydroxide and a bit of water to make paste, let it dry, and pull with minimal amount of warm naphtha, which you can freeze straight away. Be sure to let the crystals air dry properly because, considering it is a heavy naphtha, its likely your crystals will be tainted with some solvent if you dont let it dry very well (you can also redissolve the crystals in a bit of acetone and re-evaporate to help remove those traces, but it wont be as nice crystals anymore, will be more waxy product, though its perfectly active, just not as good looking maybe)

Next time try to find a faster evapping naphtha if possible.

Naptha has quite high boiling point of 160C temperature. It is possible to reduce boiling point by using vacuum pump, I made one from fridge compressor. Through not so powerful with hot water naptha starts to bubble. It's more enviromentally friendly and you don't need to inhale toxic fumes.
Also if you don't have vacuum pump you can just heat it but in pot with hot water. Be cautious with flammable liquids.
On a hot day in big surface jar naptha also may evap faster, especially if Sun heats black surface. But don't do it place where people live and avoid insects/dust gettting in.
Hexane has much lower BP, about 60C. So it evaps rapidly but again be careful as it's toxic and flamable stuff.

I ultimately found the evaporation stage prior to freezing to be unnecessary. Freezing yielded much cleaner results and I ended up not really seeing the value in evaporating beforehand. Maybe someone more experienced can advise why this doesn't make sense, but it worked really well for me and my suggestion is to skip the evap.

Well I guess not all the dmt will precipitate out of the solvent. But at the same time if you are reusing the solvent it wont be lost.
But I don't know if this will have a negatieve influence on the strength of the next a/b extraction. And you will have poorer yield?

Evaporation before freezing is to increase the concentration of DMT (same solute dissolved in less volume). Even at freezing temperatures, there is still some DMT present in the solvent. The lower temperatures merely decrease the solubility.

Thus, evaporating some of the solvent before freezing will result in a higher recovery of the DMT.

If you take solvent that was used for freeze precipitation (so it contains a minimal amount of DMT) and evaporate it off, you will recover the residual DMT that was present in the solvent.

For example:

Solubility:
10g of DMT/300mL Naphtha @ 25C
500mg of DMT/300mL Naphtha @ -10C (arbitrary value)

When we freeze precipitate the DMT from the Naphtha, we would recover 9.5g of DMT but 500mg is still dissolved in the Naphtha.

If we evaporated the Naphtha down to 50mL, only 83mg is soluble at -10C.