The power went off. Not for an hour. Not just for a day. It’s been three days, and the refrigerator has already been heated. Where’s the freezer? It’s pointless. That steak you were preserving, the ground beef you stocked up on, it’s all becoming a bacteria-infested mess. You can’t just dash to the shop since you don’t know when the grid will be operational again. In a survival situation, losing fresh meat...