RZ 0-20% Milk Brix Tester Meter Measurement Accuracy Milk Refractometer Handheld Tool

How It Works

The refractometer operates on the principle of light refraction. When a small sample of milk or colostrum is placed on the prism surface, light passes through the fluid at different angles depending on the concentration of dissolved solids—primarily sugars, proteins, and immunoglobulins (IgG). The instrument then displays a percentage reading on the Brix scale.

Higher Brix value = higher concentration of solids and immunoglobulins

Lower Brix value = lower-quality colostrum or diluted milk

Using the Refractometer to Check Colostrum Quality

Place a few drops of well-mixed colostrum on the prism surface.

Close the daylight plate to spread the sample evenly.

Look through the eyepiece toward a light source.

Read the Brix percentage displayed on the internal scale.

Interpreting Colostrum Brix Values

>22% Brix – High-quality colostrum (excellent IgG levels)

18–22% Brix – Medium quality

<18% Brix – Low quality; may be insufficient for passive immunity transfer

Key Features

Measurement Range: 0–20% Brix

High Accuracy: Precise optical lens for reliable readings

Durable Construction: Rugged, handheld, and suitable for farm environments

Easy Calibration: Simple water-calibrate function

Portable & Quick: Results in seconds, no power source required