It helps. I’ve never had to panic-buy when snow’s been threatened and everybody else has raced to the supermarket. And I could cut back on the food shop when my husband was temporarily asked to work three days a week instead of five, reducing his pay. Perhaps it’s hereditary. My parents have a year’s worth of food in their store cupboard, including 50kg of wheat, which they can soak to make a vegetarian supplement or grind to make flour. My eldest daughter keeps a 72-hour bag in her car.
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.