This WSJ report looks at the staggering waste that come from expiration dates on food. A 2019 Harvard-Hopkins study shows over 80% of people occasionally throw out food with expired date and close to 40% do so usually. About 54% think it is unsafe if expired. Where do these dates come from? Contrary to first impressions it is not mandated and it does not mean unsafe if expired. It matters because it means waste, and also adds to climate change and disposal. Over 6 billion pounds are wasted each year from expiration and another 6 billion from leaving it out too long out of about 80 billion pounds wasted each year. Keep the refrigerator at 37 degrees and store food in the refrigerator, suggests WSJ.