Got this refractometer recently. Haven't used a different one before and I'm new to home brewing in general. I was dry hopping my beer that's fermenting and decided to take a reading but it was very difficult to differentiate where the line was. There wasn't a harsh transition between white and blue. The picture on the left is as taken, the one on the right is after boosting contrast a bit.
This is the reading from the wort after boiling back on Saturday. It's much easier to read.
A lot was different between the two readings.
- Unfermented wort
- I believe I let it cool down a bit and didn't take it when hot.
- 2 overhead ceiling light fixtures with LED bulbs and diffuse glass at night.
Fuzzy Line: - Fermenting wort, krausen starting to go away - LED bulbs in recessed cans but in general the lighting in the room is more difuse. - Temp about 71 degrees.
Both times grabbed a few drops with the included pipette after sterilizing it. Everything else was pretty much the same.
Am I not using it correctly? Sample appeared to cover the area well both times.