Hi MidsMasterMax, I agree this is a huge problem with ethanol extraction and would like to give my two cents on this.
First off are you using dry ice or CO2 at all? I know most grows have excess CO2 pumped in. CO2 (especially from dry ice) can dissolve in water forming carbonic acid.
Second, I dont think distillation is going to solve your acid problem. Its a very expensive way to solve a ph issue especially with the water azeotrope. I suggest you try eliminating neutralizing the solution and then removing as much of the water as you can with A3 molecular sieves. @Photon_noir wrote in his Citric Acid Degumming Tech, (https://future4200.com/t/citric-acid-degumming-tek/936) " Finally, use the Hydrion paper to test the pH of your degummed ethanol:cannabinoid solution. The pH should be the same as it was when you started, when the paper warms to room temperature after about 1 minute… unless some magnesium citrate salt made it through, which will make it more alkaline… hopefully a nice neutral 7.
However, just in case it is more acidic (i.e. ONLY if it has lower pH than it started with ), let the liquid warm to room temperature in a covered vessel (to keep out water condensation from the air), then fully stir in small pinches of magnesium oxide (MgO) at a time to bring the pH to 7."
I like the idea of using MgO because it doesnt require any hydrocarbon/saline washes. My lab is not rated for hydrocarbons so that is not an option for me. If MgO can correct pH from citric acid washes then most likely it can take care of whatever acids are in your initial extraction.