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It’s mostly natural disasters we’re preparing for. I’m concerned about a war’s potential knock-on effects on the food chain, although I haven’t dug a bunker in my garden or anything. And then there’s Brexit. If that doesn’t go the right way, who’s to say we’ll be able to get hold of the things we can get hold of now? But, realistically, we are mostly likely to be affected by flooding or severe snow. There have been times when we have been cut off, unable to get out. We’d need to be prepared if that happens again.
Freeze-dried food is nothing new. As early as the 13th century, the ancient Quechua and Aymara people of Bolivia and Peru pioneered a form of the process by exposing potatoes to the freezing temperatures of the Andes overnight, then drying them in the sun. In 1937, Nestlé used industrial technology to create the world’s first freeze-dried coffee, and in the 60s and 70s, the US military shipped freeze-dried food rations to the troops in Vietnam.