Food Safety, No Power
When in doubt, throw it out
Spoiled food does not always look or smell wrong — some toxins have no flavor at all, and "just tasting a little" of botulism-contaminated food is enough to hospitalize. During outages, the calendar and thermometer decide, never your nose.
At a glance
- Unopened fridge keeps food safe 4 hours; full freezer 48 hours; half-full freezer 24 hours.
- Keep doors shut — start counting the moment power dies.
- Perishables held above 40 °F for over 2 hours: discard. No exceptions worth gambling on.
- When in doubt, throw it out — never trust nose or a small taste.
The fridge-freezer clock
Start counting the moment power dies. Keep doors shut — every peek resets the clock backwards.
| Appliance | Keeps food safe |
|---|---|
| Refrigerator, unopened | About 4 hours |
| Freezer, full, unopened | About 48 hours |
| Freezer, half full, unopened | About 24 hours |
A freezer stuffed with water jugs holds cold twice as long as a half-empty one — fullness itself is insurance.
The 40 °F rule
After 4 hours (or once the door finally opens), check with a thermometer:
- Food at or below 40 °F (4 °C): still safe — refreeze or refrigerate if power returns. Ice crystals still present in frozen items? Safe to refreeze, expect quality loss.
- Perishable food held above 40 °F for over 2 hours: discard meat, poultry, fish, eggs, dairy, leftovers, cut fruit. No exceptions worth gambling on.
- When the thermometer is missing, assume the worst case — discard borderline items.
What survives an outage happily
- All canned and jarred goods (discard anything bulging, rusted-through, or spurting when opened — see below)
- Whole raw fruit and vegetables (wash before peeling/eating)
- Bread, crackers, dry goods, hard cheeses in wax/rind, butter (short term)
- Peanut butter, jams opened less than a day, most condiments (mustard, ketchup, vinegar-based)
Botulism red flags on any can or jar
Bulging ends or lid · hiss/spurt on opening · milky or cloudy liquid where it was clear · any off smell after opening · dented along a seam. Discard without opening further, bagged, out of reach of animals. Botulinum toxin survives tasting and tiny amounts paralyze.
Cooking during the outage
Outdoor grills and camp stoves handle reheating — placement rules live on Heating & Cooking Safely. Cooked leftovers held above 40 °F follow the same 2-hour rule; feed people early and often rather than hoarding cooked food that will spoil anyway.
After the outage
Cleanup and restock notes
Sanitize shelves and coolers that held spoiled food (one tablespoon unscented bleach per gallon of water), wash hands well, and restock the reserve while lessons are fresh — note which foods you missed most and add those next shopping trip.
Grounded in public-domain FDA/USDA FoodSafety.gov outage guidance. Educational only.