The First Hour of a Blackout: A Room-by-Room Plan

Everyone imagines a blackout as darkness and boredom. What it actually is, for the first sixty minutes, is a small window where several resources are still available but draining fast, and most households waste that window looking for a torch. Treat it as a checklist, not a crisis, and the rest of the outage gets much easier.

Three things start counting down the moment power goes: your fridge and freezer's safe holding time, your building's water pressure if it depends on electric pumps, and your phone battery, which is about to become your only source of outside information. None of these are dangerous on their own. All three get worse the longer you delay dealing with them.

1. 01

   Light hands-free, not screen-lit. Hand out headlamps or torches immediately and leave phone torches off; a phone burns battery fast when its screen and flash are both running, and you'll want that charge later for actual information.

1. 01

   Shut the fridge and decide dinner in one go. Open it once, pull out what you need for the next meal, then close it and leave it alone. A full fridge holds safe temperatures for roughly four hours unopened; a full freezer considerably longer.

1. 01

   Fill containers while there's still pressure. If your building relies on electric pumps — common above the first few floors — taps can run dry within minutes, not hours. Fill the bath, sink and any spare containers straight away.

1. 01

   Get one source of real information running. A battery or hand-crank radio, or a single phone on aeroplane mode for text updates, beats everyone constantly refreshing apps on full brightness.

1. 01

   Pick one room to keep warm or cool. Close doors to the rest of the flat and concentrate people, blankets or fans in whichever single room makes most sense for the weather.

1. 01

   Check on anyone vulnerable nearby. A knock on a neighbour's door matters more in the first hour than the next morning, especially for older residents or anyone relying on powered medical equipment.

Water and cold food both degrade on a timer you can't restart, so they come before comfort tasks. Information comes next because it tells you whether this is a five-minute breaker trip or a genuine winter storm outage that will run for days — and that changes everything downstream, from whether you start rationing food to whether you need your get-home bag contents at all.

• Repeatedly opening the fridge "just to check", which resets none of the clock and wastes the cold air you have
• Lighting candles for light and then leaving them unattended near curtains or bedding
• Draining a phone on torch duty before setting up a proper light source
• Waiting to fill water containers until pressure has already dropped

If there's one habit worth building, it's this: treat the first ten minutes of any outage as information-gathering and water-filling, not torch-hunting. Everything else in the hour follows from getting those two things sorted early.

• Ready.gov, power outages (https://www.ready.gov/)
• US CDC, food safety during power outages (https://www.cdc.gov/healthywater/emergency/making-water-safe.html)