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For each sample, I use a refractometer, which measures moisture content, a pH meter for acidity, a honey color photometer, and other instruments that measure acidity and viscosity.

He watched as Ms. Newton cut some honeycombs and spooned a dollop onto the small glass surface of a refractometer, a device used to gauge the moisture content in the honey.

Using a device called a refractometer, we then measured the salinity of our sample.

The refractometer measures the amount of sugar in a few drops of juice.

On this day, David Hulton was behind the barista counter, using a refractometer to measure the total dissolved solids in an average cup of coffee.