Good afternoon all,
I have one of the good 'ol refractometers from eBay. It looks identical to the one SD-SLIM linked to above and came from Hong Kong if I recall correctly. I think I spent like $30 on it or something like that. Anyway, I'm having reliability issues with it. My OGs are coming out just fine (or what I expect from a proven recipe), but my FG is WAY high. For months I've been analyzing my sparge techniques, water quality, yeast, etc, thinking something is wrong with my ingredients/technique. I just did a side by side FG comparison between my hydrometer and refractometer and have a .017 difference between the two on my trusty Pale Ale recipe. I haven't done an OG comparison between the two, but plan on doing so next batch in a few weeks after I get back from vacation.
What's this "adjustment" some of you are referring to for FG readings o refractometers?