Determination of Total Acidity in Soft Drinks and Ready-To-Drink (RTDs)
Measuring acidity across soft drinks and Ready-To-Drink (RTD) beverages - from carbonated sodas and RTD teas to hard seltzers and premixed cocktails - is essential for mastering flavor balance, ensuring product quality, and maximizing shelf-life stability. Acidity directly dictates tartness, freshness, and microbial safety in beverage formulations.
With CDR DrinkLab®, analyzing Total Acidity is fast and effortless thanks to direct photometric reading - completely eliminating the time-consuming titration at pH 8.1 required by traditional reference methods.
Method
Test type: End Point.
Testing time: 1 minute.
Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR DrinkLab®.
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Sample treatment
Degas using the ultrasonic bath (code 222062) before taking the sample.
Principle of the test
The total acidity reacts with a proper chromogen to decolorize it. The magnitude of discoloration, measured at 578 nm, is proportional to the total acidity value in the sample.
Calibration curve
The calibration curve of CDR DrinkLab®, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.
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Reagent test Kits
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Total acidity | 1 - 7 g/L Citric acid | 0.1 g/L Citric acid | 0.1 g/L Citric acid |
The perfect system for you
CDR DrinkLab®
Complete analysis panel, supplied already configured
Up to 16 determinations simultaneously
Possibility of carrying out analyses of the same sample
Integrated printer
Full connections (LAN - USB - Bluetooth barcode/QR code reader)