Well I dont really get your posts with safety for lungs and for my oven.
If I put my HCl into the water in the beginning, it directly dissolves and creates the acidic soup I want with a pH of like 2-4.
Then the Spice gets dissolved while cooking - afterwards the pH is still somewhere in that range. At this point it is just a salt solution, not capable of releasing HCl ever again, except when I completely remove all water, which means no solvent and even at this point I am 98 % sure that I will just be left with the salts.
Now when I reduce the hell out of this stuff, YES, if using acetic acid it also evaporates.
But even if I reduce 7 L of HCl-Soup down to 1 L, then all of the
HCl stays in the soup COMPLETELY, leaving a
H*DMT(+) Cl(-) soup. Meanwhile it will never release any HCl back and it does not corrode anything as no acidic gas is released. It is just a
salt-solution and remains this while reducing. I did it all the time so far.
I use HCl > organic acids as I just need a slight drop of 35 % HCl to get to the desired pH and it does not smell that strong. Also I dont want to add any unneccessary organic molecules further into the soup, but this is just a personal preference.
I just seek for a faster way to get that volume down.
Yeh but STB is no option, I think its not as nice as A/B ;\
Maybe I could try to use fumar acid to let it crash out of that 7 L ? But I'm not sure how well it works with all those other crap still inside that whole mix ...