Power cut?

Ready for a week of empty shelves

British supermarkets run on lorries arriving every day, with very little kept out the back. When something interrupts the lorries, whether that’s snow, a strike, a port problem or everyone panicking at once, shelves thin out within a couple of days. They refill within a week or two. They always have.

Graham, Head of Contingency
Checked 13 November 2026
A shopper looking at part-empty supermarket shelves with a limited stock sign

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So the aim is modest. Hold enough at home that you can shrug, skip the shops for a week, and not be part of the queue.

The principle

Buy two extra things a week for a couple of months. Things you already eat. Put the new ones at the back. That’s the whole method. It costs a few pounds a week and nobody at the till looks at you.

What you must not do is the big dramatic shop. Panic buying is how a wobble becomes a shortage. In 2020 the country emptied the loo roll aisle in a week and then learned the factories had never stopped.

A week’s buffer

Making it keep

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The freezer counts

A freezer is the cheapest long-life food store you own. Sliced bread, milk in plastic bottles, butter, grated cheese and most leftovers freeze well. Its weakness is a power cut, so read how long a freezer lasts.

Kit for the cupboard

Under £20

Sistema Klip It Plus set

Rice, pasta, oats and flour

Dry goods last far longer out of their bags.

Check price on Amazon: Sistema Klip It Plus set
Under £10

Culinare MagiCan tin opener

Getting into the food

Not electric. Tape a spare inside the cupboard.

Check price on Amazon: Culinare MagiCan tin opener
Under £20

Really Useful Box, 35 litre

Keeping the buffer together

Clear, stackable, and slides under a bed.

Check price on Amazon: Really Useful Box, 35 litre