Building an emergency kit means gathering supplies that sustain your household for at least 72 hours after a disaster.
When the power goes out or a storm rolls in, the stores close and the taps run dry. That’s when a basic emergency kit earns its space in the closet. The federal guidance is straightforward: assemble enough water, food, and gear to keep everyone in your home self-sufficient for a minimum of three days. You don’t need a bunker — just a duffel bag or plastic bin packed with the right essentials.
What Goes Into A Basic Emergency Kit
The core list from Ready.gov covers seven areas: water, food, light and communication, first aid, sanitation, tools, and documents. Here’s what that looks like in practice.
- Water: one gallon per person per day for drinking and basic sanitation
- Food: a several-day supply of non-perishable items, plus a manual can opener
- Light and power: flashlight, extra batteries, cell phone chargers, and a backup battery
- Communication: a battery-powered or hand-crank radio and a NOAA Weather Radio with tone alert
- First aid and hygiene: first aid kit, moist towelettes, garbage bags, and plastic ties
- Tools and safety: whistle, dust mask, plastic sheeting, duct tape, scissors, wrench or pliers
- Navigation and documents: local maps, identification, insurance and banking information, and wills
Store everything in airtight plastic bags first — that keeps documents dry and food protected — then pack the bags into one or two easy-to-carry containers like plastic bins or a duffel bag.
How To Tailor The Kit To Your Household
One kit does not fit every home. The CDC’s guidance for people with disabilities and the general Ready.gov checklist both emphasize building around your family’s specific needs.
Households with infants need formula and diapers. Pet owners should add extra food, water, medicine, toys, and bags for animal waste. If someone in the home relies on adaptive equipment, pack extra batteries and portable chargers for hearing aids and communication devices, plus a cooler for refrigerated medications and a week’s supply of prescriptions. Mobility devices, medical supplies, and health documents belong in the kit too.
Medication planning deserves special attention. The general recommendation is a 3–5 day supply, but the CDC suggests at least one week for people with disabilities, and some local agencies advise a two-week cushion. Talk to your doctor about getting an emergency supply that outlasts a standard prescription refill.
If you want to see tested options before you build your own, our roundup of the best family emergency kits compares pre-assembled packages that skip the guesswork.
Common Kit Mistakes To Avoid
Most failed emergency kits share the same gaps. Skipping the can opener makes canned food useless. Forgetting batteries leaves your flashlight and radio dead. Leaving out important documents — identification, insurance policies, banking records — creates a paperwork disaster on top of the actual one.
Underestimating water is the most common error. One gallon per person per day sounds generous until you account for drinking, cooking, and hygiene. A family of four needs 12 gallons for a three-day window. Sanitation also gets overlooked; moist towelettes, garbage bags, and plastic ties are what keep a shelter-in-place situation livable.
The kit should support both evacuation and staying put. Dust masks filter contaminated air when you move, while plastic sheeting and duct tape seal a room when you don’t. Check for gas leaks before using any flame for emergency cooking, and never burn charcoal indoors.
How To Store And Maintain The Kit
Ready.gov’s assembly steps are simple: put supplies in airtight plastic bags, pack everything into one or two containers, and keep the kit somewhere accessible. The maintenance rule is equally direct — rotate items before they expire.
Set a calendar reminder to check expiration dates on food, water, and medications every six months. Swap out batteries and refresh documents as circumstances change. A kit that sits untouched for three years is a box of expired supplies, not an emergency plan.
FAQs
How Much Water Should One Person Store?
Plan on one gallon per person per day for drinking and sanitation. A three-day supply for one adult means three gallons minimum. Store extra if you live in a hot climate, have medical needs, or are preparing for a longer disruption.
How Often Should You Replace Emergency Kit Food?
Check the kit every six months and rotate items before their expiration dates. Canned goods typically last one to five years, while shelf-stable pouches may need replacing sooner. Swap out anything that’s expired, damaged, or showing signs of spoilage.
What Should You Do With Refrigerated Medications?
Keep a cooler and ice packs in or near your emergency kit so you can move temperature-sensitive medications quickly during a power outage. The CDC recommends at least a week’s supply of prescription medications for people with disabilities, so plan your stockpile around that window.
References & Sources
- Ready.gov. “Build A Kit.” The official federal checklist for emergency supplies and assembly steps.
- CDC. “Build A Kit for People with Disabilities.” Guidance on adaptive equipment, medications, and health documents.
- NOAA/NWS. “Emergency Supplies Kit.” Weather-focused emergency supply recommendations.
Mo Maruf
I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.
Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.