All-in-one WineScan to revolutionize testing of sulfur dioxide

2011: FOSS announces a new model of the popular WineScan™ analyzer providing accurate measurements of free and total sulfur dioxide in parallel with other main wine quality control parameters.

Sulfur dioxide is the most commonly measured parameter in winemaking. Regular testing is necessary to achieve optimal dosage in the winemaking process and to comply with regulations. Measurements are also increasingly important for winemakers seeking to minimize usage of the preservative in modern wine production.

Time-to-result of just over a minute compares favorably with around 15 minutes per test with existing routine methods or much longer for laboratory reference methods. The system is also considerably more convenient, reducing manual work and associated risks of operator error.

Integrated with other routine analysis operations

Results for free and total sulfur dioxide content are delivered to a computer screen alongside the many other (over 20) quality parameters provided by the WineScan analyzer. This provides a convenient on-screen comparison against other parameters such as pH and ethanol of potential interest in combination with sulfur dioxide.

The ability to measure sulfur dioxide is provided as an option for the new WineScan making it a complete wine analysis solution providing rapid routine analysis of all main wine measurement parameters in one box. Local support and service options are additional dimensions.

FOSS wine solution manager, Morten Olander said: “Winemakers have been asking for an integrated sulfur dioxide measurement option ever since the WineScan was introduced over ten years ago. We are now delighted to provide this new module as the next logical step in winemaking analysis.”

Smart application of analysis technology

The WineScan measures multiple parameters of wine and must using Fourier Transform Infrared (FTIR) technology to scan a liquid sample. This same FTIR technique is used to measure sulfur dioxide levels by simultaneously scanning both the liquid wine sample and gas evaporated from it. The information gained from both liquid and gas provides the basis for an accurate measurement.

All results are automatically stored for traceability with WineScan software facilities.

From WineScan to integrated sulfur dioxide testing

The breakthrough in sulfur dioxide testing marks a new milestone for FOSS technology.

For decades, FOSS has worked closely with the food and agriculture industry to improve production through the application of powerful analytical technologies such as FTIR – a technology that is ideal for rapid, multi-parameter analysis of liquid samples.

Expertise in applying FTIR technology provided a perfect platform for supporting the wine industry leading to the introduction of the WineScan analyzer for routine multi-parameter analysis of must and wine in 1999. The OenoFoss analyzer followed in 2008 to support the needs of small to mid size wine producers. Complementary developments include ready-to-use calibrations, intuitive software and networking facilities allowing experts to help manage instruments via the internet.