Refractometer to measure ethanol content

Anyone use a refractometer during ethanol solvent removal procedure to measure progress, or do they even work with crude?

Thanks in advance

your going to have a bad time with crude imo; its best used to to check the proof of your recovered etoh; and even then id recommend a hydrometer over a refractometer


Right on.

Was just curious if I could take samples at different times during solvent recovery for process development.

its a good idea; but the crude makes the sight prism wayyy to dark and unreadable