Today completed my second stage of fermentation of wine. I checked the hydrometer reading and it was 1.000.
Out of interest, I also checked the specific gravity of the wine with a clinical refractometer and it read 1.033. Thinking that my refractometer needed adjusting, I checked a distilled water reading which as it should be was 1.000.
Why the difference in readings for a clinical refractometer and hydrometer?