The first reflex when building an emergency kit is to gather the longest-lasting products. But in a real emergency there may be no stove, no electricity and sometimes no water. The criteria therefore have to be different.
What are the right criteria?
There are five, and shelf life is only one of them.
The first is requiring no cooking. The stove may not work; the product has to be edible as it is.
The second is consuming no water. Dry pasta and rice keep for a long time but need both water and heat to cook; in an emergency water is the scarcest resource.
The third is calorie density. High energy in limited volume is needed.
The fourth is packaging durability. Glass jars break; cans and pouches are safer.
The fifth is familiarity. Under stress an unfamiliar food may go uneaten, particularly by children.
How are water needs calculated?
Water comes before food, and the calculation is simple.
Plan at least three litres per person per day. Two of those are for drinking, one for basic hygiene and food preparation.
In a hot climate or with physical exertion that rises to four litres.
For a three-day plan, a family of four means 36 litres. That is a considerable volume and requires storage space.
Bottled water does not keep indefinitely. Taste transfer from plastic increases over time; refreshing every two years is a reasonable practice.
Purification tablets or a filter partly solve the volume problem but are not sufficient alone; an initial stock is essential.
Which products belong on the list?
Seven groups meet all of these criteria.
The first is canned goods: beans, chickpeas, corn, tuna, canned ready meals. Edible directly and requiring no water.
The second is nuts: almonds, walnuts, hazelnuts, cashews. The most calorie-dense group.
The third is dried and freeze-dried fruit. It supplies vitamins and fast carbohydrate in a small volume.
The fourth is tahini and halva. High in calories, long-lasting and needing no cooking.
The fifth is crackers and other dry baked goods.
The sixth is infant formula and purées, if there is a baby in the household.
The seventh is energy and protein bars. Being compact and single-portion is an advantage.
| Product group | Shelf life | Needs water | Calories per 100 g |
|---|---|---|---|
| Canned pulses | 2-4 years | No | 90-120 kcal |
| Canned fish | 3-5 years | No | 180-220 kcal |
| Nuts | 6-12 months | No | 580-650 kcal |
| Dried fruit | 6-12 months | No | 250-320 kcal |
| Tahini, halva | 12 months | No | 500-590 kcal |
| Crackers, rusks | 6-9 months | No | 400-450 kcal |
| Energy bars | 9-12 months | No | 350-450 kcal |
How many days should the plan cover?
The common recommendation is at least three days; seventy-two hours is the expected window for outside help to arrive.
A safer target is seven days. In large-scale events, transport can be cut for days.
Aim for 2000 calories per person per day. A three-day plan means 6000 calories per person.
That corresponds roughly to: three cans, two hundred grams of nuts, two hundred grams of dried fruit, two hundred grams of tahini or halva, and two packs of crackers.
When calculating, children and older adults need separate consideration; the quantity changes but never falls to zero.
Overestimating beats underestimating. Excess is consumed during rotation; a shortfall cannot be made up.
Why is a can opener a separate item?
Because it is the most frequently forgotten piece.
Even cans with ring pulls can fail. A mechanical opener belongs on the list.
Other tools are needed alongside: a knife, spoons and forks, disposable plates, rubbish bags.
If heating is wanted, a small camp stove and fuel can be added. But because indoor use is risky, that is a preference rather than a requirement.
Disposable wet wipes can count as part of the food list, because they save water.
A hand-operated can opener beats an electric one, needing no power at all.
How is a rotation routine established?
The most common mistake is preparing the kit and forgetting it. Opened three years later, most of the contents have expired.
The right method is a cycle: use the products from the kit in the kitchen and replace them.
A check every six months is a reasonable frequency. A repeating calendar reminder makes it easier.
Short-life products need turning over more often. Nuts every six months, cans every two years.
Writing the expiry date on each item in marker pen makes it possible to check without opening the box.
Review the list during each rotation. Changes in the household — a new baby, an allergy, a dietary restriction — change the list.
How are special requirements planned?
If there is a baby, formula, bottles and sufficient water need separate planning. Infant formula is among the shortest-life items.
Where there is a chronic condition, medication counts as part of the food kit. With diabetes, a fast sugar source should be included.
With coeliac disease or a serious allergy, safe products belong in a separate box. In an emergency the opportunity to read labels may be limited.
If there are pets, their food and water need calculating too.
For older family members choose items that are easy to chew; pastes and purées rather than hard nuts.
Where should the kit be stored?
Somewhere accessible and cool. Next to a radiator or in direct sun shortens shelf life.
It should be near the door, in a position where it can be grabbed if evacuation is needed.
The weight has to be carryable. More than one person can lift makes the kit unusable; split it into two if necessary.
Carrying water separately makes sense; water is heavy and keeping it in the same bag as food makes carrying harder.
Stick a list of the contents on the outside. Under stress it is hard to remember what is inside, and a list saves time.
Keeping one kit at home and a small backup in the car is a common and sensible practice.
