Near-infrared analysis is an excellent choice for the analysis of beverage contents. In case of liquids the measurements are typically done in either transmission or transflectance measuring modes. Typically only a few millimitres of sample will be sufficient for a transmission or transflectance type measurement setup, and no extensive sample preparation will be needed. In a manufacturing process, NIR sensors could be used for online quality control of the initial ingredients and the intermediate products, and also in the analysis of the final product.
For example, NIR measurements could be used in the following applications:
- beers, for analysis of alcohol content, and monitoring of multiple different parameters during the brewing process, such as original gravity, sugars, and total solids
- wines and distilled spirits, to analyze the sugars, alcohol content, and tartaric acid
- fruit juices, for sugars and acidity
- coffee and tea, for determination of caffeine and theobromine content