I'm a refractometer newbie; I can only barely wrap my head around how exactly the darn thing works.
I've heard from a couple of folks that getting consistently accurate readings can be a bit difficult. I've had a good amount of success with mine so far, but there are times when I would like to know what I can do to ensure that my readings are as accurate as possible. One thing I've been doing is to time everything so that my samples cool for the exact same amount of time, and so that the temperature of the glass has the same amount of time to find equilibrium with the sample. The manual says to clean the sample well between each use with alcohol, and I was recommended to calibrate between each reading.
What works, and what doesn't? Please let me know. Vince can hopefully jump in on this too.