Refractometer Blog: How to Use, Calibrate & Choose » Measurement Guides

Measure grape and must Brix with representative sampling, controlled technique, correct scale interpretation, and clear fermentation limits.

Use a coffee refractometer consistently, distinguish TDS from extraction yield, and turn repeat readings into useful brew decisions.

Choose an alcohol refractometer by sample and scale, then avoid confusing ethanol, Brix, potential alcohol, and corrected results.