Near-infrared (FTIR) analysis has become an essential tool for the quality control of wines as it allows for the acquisition of a lot of analytical data in a short time and at limited costs. The values attributed to free and total SO2, however, have so far been somewhat approximate. Winescan™3 provides an innovation that makes it possible to improve the precision and accuracy of data that will make companies feel more confident about analytical data and achieve better control of the production process.