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Podcast: Audiostories
Episode: Tracing what we eat with a barcode made from yeast
Description: Baker's yeast has many uses -- making homemade loves of bread, puffing up pizza dough or getting cinnamon rolls to rise -- as well as a more unexpected one that involves tracking a product throughout the entire food chain. A startup in Canada has found a way to use this common, natural ingredient to create barcodes, with the goal of ensuring traceability and preventing food scandals.