Yes, it will stay in salt form. The salt forms are actually much more stable... but it will appear that the evaporation never completes. Most of the salt forms do not dry to crystals or powder as would be expected. You could carefully scrape up the residue and place it in gel caps, but my recommendation is to simply dissolve in a small amount of water and chug. Yes, it tastes bad, but nothing compared to the traditional ayahuasca brew.
My method which has been very effective so far is to take two small clear glasses, place my dose of harmine HCl in one and freebase DMT in the other. Then I will pour a few ounces of purified water in each. The harmine HCl is slow to dissolve and requires some stirring and often the addition of more water. The DMT will not dissolve, but slow addition of a weak food grade acid such as lemon/lime juice, vinegar, or citric acid and some stirring will slowly cause it to convert to a salt and dissolve. Sometimes it is necessary to add a bit more water, but you want to keep the volume down as it's going to taste really nasty and you want to be able to get it into your stomach in a gulp or two. If you're starting with anything other than pure white crystals, there may be some oily goop that wants to stick to the sides and bottom of the glass. Don't try to keep adding acid and water to get it to dissolve as it's just not going to happen. This will just make it harder to get down. And when you go to chug, it really doesn't matter if this goop stays in the glass or gets consumed.
If you do put in capsules, I would recommend to actually put the MAOI and DMT in the same capsules. If you simply can't do this, then consume the MAOI capsules 10 minutes prior to the DMT to give the capsules every chance to empty into your stomach before the DMT does. Otherwise, you run the risk of the DMT capsule/s opening first and being destroyed by MAO in your stomach.
Many recommend to drink the MAOI and DMT together, but I find it to be noticably more efficient to wait 10-20 minutes between the two. But of course, we all have slightly different physiologies.