The most common way an emergency stock fails isn't that it was too small. It's that it was bought once, put in a cupboard and forgotten until it was all out of date. The fix is rotation: you eat from the stock as part of normal life and replace what you use. Finland's 72 hours campaign says it directly: emergency food is not a separate stockpile, but food you use in daily life and replace as needed.
The principle: first in, first out
Shops do this with every shelf, and it works at home too. The oldest item is the next one you eat. New purchases go behind it.
- Put new items at the back. When you unpack shopping, move the older tins to the front and put the new ones behind them.
- Eat from the front. Use the stock in your normal cooking: a tin of beans here, a packet of crackers there.
- Replace what you use on your next shop. Keep a short list on the cupboard door.
Sweden's way to build the stock in the first place fits neatly with this: buy one or two extra items each time you do your normal shopping. You never have a big bill, and the stock rotates itself.
Store what you actually eat
Rotation only works with food you like. Seventeen of the 24 guides we compiled list tinned food, sixteen list ready-to-eat dry food and twelve list dry staples such as rice, pasta, oats and lentils. Choose versions of these you already buy. A tin of something nobody eats will sit there until it expires.
Label and date
- Write the month and year of purchase on each tin or packet with a marker, large enough to read at a glance.
- Group the stock by type: tins, dry food, drinks, baby food. It makes gaps obvious.
- Keep a simple list inside the cupboard door: item, quantity, earliest date.
Food labels in the EU carry one of two dates. "Best before" is about quality: the food is usually still safe after it, but may lose flavour or texture. "Use by" is about safety: don't eat the food after that date. Most tins and dry food carry a best-before date.
Check twice a year
Pick two dates you'll remember. When the clocks change works well. At each check:
- Move anything close to its date into the kitchen to eat in the next few weeks.
- Check tins for swelling, rust or dents along the seams. Throw away any that are damaged.
- Check dry food for damp and pests.
- Replace what you've used, and adjust quantities if your household has changed.
- Check medicines, batteries and the first-aid kit at the same time.
Items that need less rotation
Some things keep for years and suit a stock you'd rather not think about:
- Emergency ration bars keep for five years or more and need no water to prepare.
- Long-life emergency water in sealed pouches or cartons keeps for years. The pick below states 10 years.
- Lithium batteries store for years and work in the cold.
Water rotation
Unopened supermarket bottled water keeps for a year or more. Rotate it like food: drink the oldest and buy new. Sweden's guide says to store water somewhere dark and cool, check it once or twice a year for any unusual taste or smell, and change it when necessary. See how much water to store.
How much to keep
For Germany's guidelines, the federal food agency BLE publishes a stock calculator. Per person per day it allows 330 g of grain products, 400 g of vegetables and pulses, 250 g of fruit and nuts, 250 g of dairy, 120 g of eggs, meat or fish, 33 g of fats and 2 litres of drinks. You don't need to follow it exactly, but it's a useful sense check. Our checklist works out the totals for your household and horizon.
In a power cut, eat in this order
Rotation applies during an emergency too. Slovakia's guide says to eat food from the fridge first, so it doesn't spoil, and not to open the freezer unnecessarily. Finland adds that frozen food can take up to several days to thaw from freezer temperature to zero if the freezer stays closed. Then move on to the cupboard stock, starting with what doesn't need cooking. See our guide to food you can eat without cooking.
Medicines rotate too
Slovakia advises against stockpiling unnecessary quantities of medicine and asks you to watch expiry dates. Keep a small extra supply of what you take regularly, and use the oldest pack first when you collect a new prescription.