Optimized analysis method s for the determination of SO2 in beer and malt
Over the past few years, the SO2 content of beer and the available methods of analysis have been the focus of an increased amount of attention in the professional community. This article provides a comparison of three different analysis methods currently in use for the determination of SO2 content. Of the three methods, SO2 distillation is the most economical, providing a good approximation of SO2 content. If the SO2 content in beer lies near the upper limit of 10 mg/l, it is recommended that an alternative method, one that is more accurate such as CFA or IC, is utilized. SO2 distillation has a lower recovery factor due to the differences in equipment among laboratories.
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