Hi. Ok, this may be a ‘greenhorn’ question. I bought a refractometer (with automatic temp conversion) through NB a couple months ago, and I’ve been trying to learn how to use it. Every site I seem to come across, though, talks about converting Brix to SG. The device I bought, though, has a Brix scale on the left side (when peering through the eyepiece) and a SG scale on the right. Even with that, though, the NB site says I will need to do some calculations for final gravity.
Could someone tell me if I’m able to simply take the SG reading during fermentation and trust it, because I don’t at the moment, easy as it is.
For example, I just brewed a Dead Ringer pale ale extract. The OG came out at 1.071, per the refractometer. After almost 3 weeks in primary, I transferred to secondary and took a reading, and it was 1.034. Both readings seem high to me. Unfortunately, I didn’t think at either time to take a reading with a standard hydrometer (just a bit rushed for time and forgot).
I’m sure the question has been asked before and the answer is out there somewhere, but as I said, everywhere I’ve looked talks of conversion from Brix to SG, but I’m not sure if I have to with this device or not.
Thanks for any insight.