For an apartment in South Korea, prepare at least three days of clean drinking water, foods that can be eaten without electricity, and the essentials needed to leave quickly if the building becomes unsafe. South Korea's official Safety Korea heavy-rain guidance says to have at least three days of food, water and daily necessities ready for interruptions of electricity, gas or water. It does not establish a litre-per-person amount in that passage. The shopping quantities below therefore use a clearly labelled sample assumption, not a Korean government water standard.
For a single adult, begin with three breakfasts and six main portions, all realistically edible if the power and fridge are out. For two adults that is six breakfasts and twelve mains; for four people, twelve breakfasts and twenty-four mains, adjusted for children, diets and actual portions. A home reserve and an evacuation bag are separate: even a full pantry is no reason to remain in a flooded basement or building under an evacuation order.
A practical three-day water and meal basket
| Household | Three-day meals (illustrative) | Water if you choose 3 L/person/day | Two-litre bottles |
|---|---|---|---|
| One adult | 3 breakfasts + 6 main portions | 9 L | 5 bottles = 10 L |
| Two adults | 6 breakfasts + 12 main portions | 18 L | 9 bottles = 18 L |
| Four people | 12 breakfasts + 24 main portions | 36 L | 18 bottles = 36 L |
Important: the 3 L/day figure is only a reader's example for doing bottle arithmetic. The Safety Korea page above confirms duration (three days), not that quantity. Drinking, preparation, heat exposure, medical issues, infant feeding, hygiene and pets may require additional or differently allocated water; do not treat this table as a medical adequacy guarantee or replace local emergency instructions. Water carried to safety should be limited to what a person can carry without jeopardising evacuation; 36 L weighs roughly 36 kg, before bottles.
You can begin with less money and space than an expensive commercial disaster kit: buy foods from your normal grocery list and keep enough extra for the emergency meals, then replace what you eat. The first 24 hours should be genuinely no-cook.
What goes in a Korean no-heat food basket?
For one adult's three days, choose three shelf-stable breakfasts such as crackers, cereal or familiar breads with small unopened long-life milk or a tolerated alternative. For six main portions, mix pull-tab canned fish, ready-to-eat beans, seaweed, fruit cups, and cooked retort or sealed foods only if the packaging says they can be eaten without heating. Add small snacks, a manual can opener where needed, drinking cups, tissues and bags for rubbish. Confirm the portion is large enough for the person's actual appetite; one tiny can is not automatically a meal.
Common supermarket items in Korea include 참치캔 (canned tuna), 김 (dried seaweed), 즉석식품 (convenience food) and 상온보관 (room-temperature storage before opening). 전자레인지 조리 means microwave preparation, so don't count that item as a no-power meal just because it is sold in a sealed package. Some instant rice products need heating, as do dry noodles: don't spend your first-day allowance on them. For allergies and special diets, read the specific ingredient and storage label.
For a couple, favour individual portions when a fridge may not run. For an older resident who cannot grip a tin opener easily, store easy-open packages within reach, not on a tall cupboard. For a four-person household, divide foods into family meals but mark any infant formula or medical dietary needs separately. An unopened UHT drink may be shelf-stable; it often needs refrigeration after opening.
Where to shop without guessing prices or availability
Look at an E-Mart, Homeplus, Lotte Mart, neighbourhood supermarket, convenience store or grocery-delivery catalogue before rain or snow disrupts travel. A retailer name is a place to look, not proof of current stock in your branch. Check 2 L water bottles and six-packs, small canned proteins, cereal, biscuits, ready-to-eat food, batteries and flashlights. A familiar 2 L × 6 pack supplies 12 L; one pack exceeds the 9 L sample for one adult, two packs provide 24 L for two adults, and three packs provide 36 L for four. Individual bottles may allow a closer match.
No won price is asserted here. The research found catalogue water listings that were out of stock, which cannot support a buyable basket today. Check your actual shop price before planning a budget, and count food costs separately from water. A realistic local grocery basket with clear labels is more useful than a supposedly cheap emergency-food bundle with no verifiable meals.
Rotate the food: write the earliest expiry date, eat older items in normal weeks and replace them. Store sealed water on stable low shelves, not above a sleeping area, and avoid blocking doors or the evacuation path. Heat, moisture and damaged packages can invalidate stated shelf life. Food that has been contaminated by floodwater should be discarded rather than judged safe by smell or taste.
When you stay and when you leave
| Safe apartment with a temporary utility outage | Floodwater, structural danger, or official evacuation |
|---|---|
| Use the three-day home water and food stock, clean water and a battery-powered light | Follow the official route immediately; do not carry all household water |
| Keep medicines, phone power and safe temperature plans within reach | Bring a portable bag with identity documents, prescribed medicines, a manageable drink, simple snacks, torch and phone |
| Follow updates from the building manager and relevant district authorities | Avoid underground rooms, flooded underpasses and moving floodwater; use safe routes directed by authorities |
Two residents, two correct decisions. A Seoul renter on an upper floor loses water service for a short period but the building is confirmed safe: the resident uses bottled water and no-heat meals and monitors the building notices. A family living in a semi-basement (banjiha) sees floodwater approaching its doorway: staying to use stored food may trap them. They leave early using official warnings and a safe route, not retrieve the 36 L family reserve.
This is the real failure path: a resident has an impressive pantry, but it is in a flooded lower storage area, while their passport and medicine are elsewhere. Safety Korea urges preparing supplies together ahead of time and responding to hazard instructions. A light exit bag placed in an accessible dry location matters at least as much as food quantities.
Prepare for cold-weather outages separately
A three-day pantry does not make an unheated apartment safe during prolonged winter cold. If safe indoor temperature cannot be maintained—especially for infants, older adults or someone medically vulnerable—follow local shelter and evacuation information. Never operate charcoal braziers, outdoor camping burners or fuel generators indoors or in enclosed balconies; carbon monoxide can kill without warning. Only use cooking/heating equipment according to manufacturer instructions and building rules. The no-cook food plan is specifically designed to work without risky improvised heating.
The shopping trip to make this week
Count everyone in the home and prepare three actual eating occasions per person per day, at least the first day's food without heating. Choose your own safe water volume with local needs in mind; if using the illustrative 3 L daily assumption, one adult's three-day purchase is 9 L (five 2 L bottles), while a four-person home example is 36 L (eighteen bottles). Put a small exit bag with medication and documents by an accessible door, then find your district's emergency alerts and evacuation point. Three days of stock is preparation, not permission to stay in danger.
After preparing the pantry: if you are new to Korea, the renter's home and deposit guide helps with your building's lease and contact responsibilities; the everyday cost guide covers ordinary shopping budgets. Neither link replaces district emergency instructions.