Relationship Between Temperature and Brix: Brix Temperature Correction
When temperature increases:
- The liquid expands
- Its density decreases
Result: Brix reading decreases
The actual sugar content remains the same, but the meter shows a lower value
When the temperature decreases:
- The liquid contracts
- Its density increases
Result: Brix reading increases
Important Point:
- Brix itself does not change (the amount of sugar remains the same)
- Only the measurement changes
Example:
Suppose you have juice:
- At 25°C: 12° Brix
- At 40°C: it may show around 11° Brix
- At 10°C: it may show around 13° Brix
What’s the solution
Most refractometers are calibrated at 20°C (standard temperature)
Or you can use a meter with ATC (Automatic Temperature Compensation)
Summary:
- Temperature affects Brix readings
- Higher temperature → lower Brix reading
- Lower temperature → higher Brix reading
- Actual sugar content does not change; only the reading changes