Imagine summertime without ice cream, or an ice-cold lemonade. No chilled wine or cold beer can be found — anywhere. It’s horrible and downright post-apocalyptic, like something Tina Turner sings the theme song to. But a world quite similar to this existed, mere centuries ago.
Refrigeration is not only responsible for what you eat, but probably also where you live, which is why it's next on my list of the five all-time most important food science breakthroughs!