An old baseified solution containing NaOh, ascorbic acid, and acrb was available. The previous pulls may have left some DMT in the soup. An attempt at further pulls was done by swim.

As further heating of a baseified solution is not recommended, 250ml of cold soup was poured into mason jars, 100ml of room temperature Naphtha added. The jars were then shaken vigorously, and let separate 10 times, waiting each time for the solution to separate. Each jar was subjected to a heat bath (~40-45C) between agitation.

Naptha from all pulls was combined and freeze precipitation preformed.

Without knowing what the original soup contained, it will be impossible to know what percentage this may yield.

1 question: should the naphtha have been heated prior to being added to the (cold) soup?

Fingers crossed

It helps...the warmer the solvent, the more alkaloid it can hold in suspension.

Thanks, swim was under the impression that the bath would be enough. This makes sense though.

It could help a little but it should only take seconds for the naphtha to reach room temp when shaken into the solution.

If the yield is poor, make sure to further reduce the naphtha to 50ml or less.

Thanks for the tips. Agreed that naphtha should be evapped further.

On another note, what are your thoughts on freeze-microwave thaw-freeze-microwave thaw, in the pre soup stage?

I found some interesting information about microwave reactions potentially increasing yield; http://www.tan-delta.com/basics.html

I've heard of this technique before and it does make a lot of sense. Side by side comparisons of using this technique weren't done though so can't say for sure. At worst you won't see an increase so why not ?

Also update on what happened, always wanted to know whenever spent soup can provide substantial yields if left for such a long time.

How long do you microwave?

The experiment did not yield, so a further evaporation of the naphtha will be required in order to see if any DMT was left. Best guess is the soup should have been re-acified and the process started anew. Till now, it seems to have been a loss. Once evaporated further, an update will go up.

In the meantime, another look at microwaves thawing for the next one. I am unsure about time, but would keep it on low and thaw mode rather than exploding a batch all over the inside of your machine

Personally, I feel I am willing to wait for thawing to occur. No need to rush anything.

Certainly agree about not wanting to speed things up unnecessarily, the idea however is not to speed the defrost process as much as it is intended to break down the plant's cell walls. This is something that seems to occur in a microwave. Without a side-by-side it is hard to know. Perhaps I will do the comparison test soon. Should be interesting to see.