107 times a day, we open the doors to one of the most consequential inventions in the history of food and drink. The refrigerator. The majority of the food we eat passes through the cold chain says author and co-host of the podcast Gastropod Nicola Twilley. New Zealand's multi billion dollar meat and dairy exports are only possible because a Scottish doctor figured out how to keep things cold in the 1800's. Twilley says the refrigerator is underappreciated feature of our food system, but keeping almost everything we eat cool is making the planet hot. She explains why we need a refrigeration reckoning in her new book, Frostbite: How Refrigeration Changed Our Food, Our Planet and Ourselves.