I have been starting an STB extraction with mimosa, i have been having the mix in a jar for a few days with nafta that i pull out and replace with fresh now and then...

My question is that the lye/mimosa goo has started to take the form of jello and i´m wondering if i need to stir it around and brake it up for best absorbation into the naphta???

first... I have no idea whats going on in that jar. Jello.... never had that happen.

But, my best guess would be to add more water.

If you want to give more details of whats gone on so far, we may be able to figure out whats going on.

Have you precipped any of your solvent? if so, whats the yield like so far?

Yeah add water until it's loose before adding any more naptha.
Then proceed as normal.