1. How active are the microorganisms in your yogurt? We created a new tool to study probiotic activity — and made it out of cardboard

    By Carlos D. Garcia, Clemson University and George Chumanov, Clemson University Humans have been fermenting food and drinks — everything from kimchi and yogurt to beer and kombucha — for more than 13,000 years . Fermentation – a natural process that uses microorganisms to create alc