Ummmm, sorry, but this is not correct. Ethanols BP is 78.4C while isopropanol's BP is 82.4C, so the ethanol will be gone before the ispropanol is.
I used to use ethanol exclusively for my oils, but have recently determined that 99% or greater iso works really well. If you're not impatient, it will all dry out well, and a few drops of ethanol can be added to reduce viscosity and make it more liquidy.
Best of luck.
I
You are absolutely correct! My error on Iso boiling point, thanks for catching it.
My memory did not serve me well and Iso does have a higher boiling point than Ethel. In my ancient, befuddled, and demented brain, I remembered Isopropyl as being between Methanol and Ethanol in boiling point.
The point is still valid however in principle. Because of azeotropic equilibrium. The ethanol will help purge the remaining Iso. A better choice might be a few drops of water to bump the boiling point up even further however, for the reasons that I originally stated, but incorrectly supported.
Good idea on adding a few drops of ethanol to keep thick oil flowing. It takes less than 10% by volume and flashes off quick. If you keep the alcohol percent low enough, because of the cannabis oil dilution, even 190 proof tincture is no longer 190 proof, or a high enough proof to burn the tongue when used sublingually
My BHO sublingual stays liquid at ambient, and contains no alcohol, which many of the patients I support prefer or insist on.
Here is a picture of a batch of raw oil before adulterating, sloshed before cooling to show color.
GW