Separate post to answer this important result:

Yes, I believe this is it . The picture with the yellow extract, right? I think you got it. I even see some smaller xtals sticking to the wall which is typical.

So you removed some water (freezer ice) and added more citric and the clouds crashed, right? I think the key step was adding the extra citric acid. I say that because I only need to add excess citric, as long as I do that I don't need to remove water.

To recover you can swirl the powder into solution and pour everything through a coffee filter. It will catch the crystals.  Rinse the jar and the xtals with some fresh ethyl acetate and let them dry. They scrape/fall off the filter very easily onto a sheet of paper for example. They will be fluffy and easily fly away towards heaven, so be a little careful. If you couldn't dislodge a small amount to xtals on the sidewall, dissolve them in water, pour in a shallow baking dish and evaporate them - they will make beautiful long needles this way, especially when evaporated slowly without heat.

Unfortunately, I don't think there is a fixed value of citric acid we can give. Any citric acid that reacts with mescaline is in salt form and won't count towards an excess. If your cactus is higher yield than mine, then you need even more citric acid than me to have excess citric, because more was neutralized by mescaline FB. We want those pH strips red throughout, it seems to always crash in that case.

One thing I don't understand is that you mention the pH paper from yesterday faded, but I still see the same orange towards the bottom of the strip in yesterday's picture (post #71). It looks like removing the ice increased the pH, and then you added more citric and it crashed within minutes.

I think that we are finding that adding citric pushes the following reaction to the right.

3Mes(↑) + H3Cit(↑) ⇒ 3(MesH)Cit(↓)

Next time, I suggest to directly add more citric acid. That seems to force xtalization.