Explore the surprising origins of ketchup, the condiment Americans consider homegrown. Discover how this iconic sauce traces back to 17th-century China's fermented fish sauce 'ke-tsiap,' challenging everything you thought you knew about this pantry staple.

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More from Sticky Note Podcasts:
Deep in the Stacks (daily jazz vinyl) | Required Drinking (cocktail history) | Photography Knowledge (daily photo tips)
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