GUIDE
How to build a 3-day emergency food supply at home
Updated: July 2026 · All guides
A 3-day food supply is a sensible first step in home preparedness: enough to ride out short power cuts, storms, or delays getting to a shop — without turning your kitchen into a bunker. The goal is usable food you rotate into everyday meals, not cans that expire in a closet.
Why start with three days?
Many emergency planners suggest working up from 3 days → 1 week → longer reserves. Three days is achievable in a normal cupboard, affordable, and easy to track. It also matches how people actually shop: you already buy rice, pasta, tinned beans, and snacks — you are mostly organizing and topping up.
How much food per person?
A rough planning figure is 2,000 calories per adult per day (adjust for children, athletes, or medical needs). For three days and a household of two adults, aim for about 12,000 calories total in your dedicated reserve — but spread across meals you would really eat.
Build around categories:
- Carbs: rice, oats, pasta, crackers, bread (freeze extra loaves).
- Protein: tinned fish, beans, lentils, nut butter, long-life milk.
- Fats & flavour: oil, butter (fridge/freezer), salt, spices — morale matters.
- Fruit & veg: tinned tomatoes, corn, fruit in juice; frozen veg counts if power is on.
- Comfort & quick: soup, instant noodles, cereal — for stressful days.
Do not forget water
Food planning often ignores drinking water. A common rule is about 2 litres per person per day for drinking and basic cooking — more in hot weather. Store sealed bottles or use food-grade containers; rotate stock like food. Track water separately from pantry items (Stokl lets you log water reserves alongside food).
Rotation beats hoarding
Label shelves or use a simple home food inventory list. When you shop, buy replacements for what you used from the “reserve” zone first. Check best-before dates monthly. Food you never eat is not an emergency supply — it is clutter.
Where to store it
Cool, dry, dark cupboards work best. Avoid garages that freeze or overheat. Keep heavy tins low, keep a manual can opener with the stock. If you rely on freezer food, remember it only counts when the freezer stays cold.
Track your 3-day supply digitally
Spreadsheets work once; apps work when life gets busy. Stokl helps you list what you keep at home, estimate how many days supplies might last, and see expiry dates — all on your device, no account required. Free to download; Pro unlocks larger inventories.