On today’s pages, ⁠Chullin 106 and 107, a discussion of handwashing leads to stories of culinary confusion, marital disaster, and a very dirty mustache. Centuries later, Ignaz Semmelweis would discover just how deadly unwashed hands could be—and pay a terrible price for trying to convince the world. Why are the invisible dangers sometimes the hardest to believe? Listen and find out. Learn more about your ad choices. Visit megaphone.fm/adchoices

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