Yes, this is what i meant. Quick overview of my process:

1. Keeping acidified solution in warm water bath for about 1,5-2 hours.

2. Salting and let it sit for another 30 mins or so.

3. Adding lye and let it sit in water bath for 1-2 hours. After that taking solution out of the water bath and cooling it down to the room temperature.

And of course mixing and shaking from time to time.

4. Making 4-5 pulls with 25-40ml of hexane(20-30 minutes for each pull).

With this process my yield is always at least 1,5% of beautiful white or off white spice. This is what i got from brazilian mimosa.

Can`t say for sure because i didn`t measure temperature. But even if my solution was slightly warm i always ended up with yellowish spice.

ps Yes i was talking about that link with Earthwalker`s tek. There is lots of useful tips. :thumb_up:

pps There is nothing wrong with yellow spice. Just a matter of personal preferences. You should try by your self and go from there.