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![Mandy Rothert, lab manager at the Fermentation Science Institute at SIU, describes testing sanitizers for impurities in the Fermentation Science Lab Tuesday, Oct. 20, 2020. “This is where we were testing some commercial hand sanitizer and we were [looking for] any of the byproducts, the impurities, in the ethanol, I don’t know if you’ve ever noticed how some hand sanitizers smell like bad tequila, so that’s all of those byproducts in there that we don’t want,” Rothert said, “we use this to measure the alcohol percentage to make sure that we were at 80 percent.”](https://dailyegyptian.com/wp-content/uploads/2020/10/K3A8095-EditRGB-900x616.jpg)
