How to Build a 72-Hour Emergency Kit for Your Family
How to Build a 72-Hour Emergency Kit for Your Family
FEMA recommends every household maintain a 72-hour emergency kit. Most don’t. Here’s exactly what to include, how to organize it, and why the first 72 hours after a disaster are the most critical window you’ll face.
Why 72 Hours?
When a major disaster strikes — earthquake, hurricane, extended power grid failure, severe flooding — emergency response systems become overwhelmed within hours. Roads close. Communication networks fail. First responders prioritize life-safety calls over welfare checks.
The 72-hour window is well-documented: it’s the typical period before coordinated outside relief reaches the majority of affected households. If your family can sustain itself for three full days without external support, your odds of coming through a disaster safely increase dramatically.
A complete 72-hour kit covers six core areas: water, food, shelter and warmth, medical, communication, and documentation. Most families have components of this scattered around their homes. The goal of this guide is to help you consolidate, complete, and organize those resources into something you can actually deploy under stress.
Category 1: Water
The math: One gallon per person per day. A family of four needs 12 gallons minimum for 72 hours. In hot weather or for physically active adults, increase to 1.5 gallons per person per day.
What to Include
- Pre-packaged water pouches or bottles — easier to grab and go than large containers. Individual 125ml water pouches (stackable, nearly unbreakable) are ideal.
- Water purification tablets — iodine or chlorine-based. Each tablet treats approximately 1 liter of water. A bottle of 50 tablets weighs almost nothing and can be your backup water source for weeks.
- Portable water filter — a quality straw-style or squeeze filter removes bacteria and protozoa from surface water. In an extended emergency, the ability to filter water from streams, lakes, or rain runoff is extremely valuable.
- Collapsible water containers — flat when empty, full-size when needed. A 10-liter collapsible container lets you carry water from a filling station to your shelter location.
Storage and Rotation
- Store sealed commercial water in a cool, dark location away from chemicals (which can permeate thin plastic containers)
- Commercially bottled water is safe indefinitely if unopened, though FEMA recommends rotating annually for best taste
- Home-filled water containers should be replaced every 6 months
Category 2: Food
The math: 2,000–2,500 calories per adult per day under moderate stress. Kids’ requirements vary but plan for 1,800+ for older children.
What to Include
- Ready-to-eat meals (MREs) — no cooking required, long shelf life, complete nutrition in one package. Ideal for the grab-and-go scenario.
- Freeze-dried meals — excellent taste and nutrition, but require water to prepare. If water is abundant, these are the best-tasting emergency food option.
- Emergency food bars — compact, no preparation required, dense calories. Use as backup or vehicle kit food.
- Comfort foods — crackers, peanut butter, dried fruit, instant coffee or tea. Morale matters more than most survival guides admit. Include something your family genuinely enjoys.
What to Avoid
- Foods requiring refrigeration (obviously)
- Highly salty snacks that increase water consumption
- Anything that requires cooking if you’re not including a cooking method
Cooking Capability
If space allows, include a compact camp stove with fuel canisters. The ability to heat food and boil water is a significant quality-of-life upgrade in a 72-hour scenario. A single isobutane canister (~100g) provides approximately 60–90 minutes of cooking time.
Category 3: Shelter and Warmth
Principle: Hypothermia is a risk even at temperatures that feel mild. Wind and wet amplify cold dramatically.
What to Include
- Emergency mylar blankets — one per person plus two extras. A quality mylar emergency blanket reflects 90% of body heat and weighs just 2 oz. They also work as improvised signaling devices and rain covers.
- Wool or synthetic insulating layer — one per family member. Cotton kills in cold wet conditions; wool stays warm when wet.
- Rain poncho — one per person. The ability to stay dry is foundational to staying warm.
- Sturdy work gloves — critical for debris clearing, rescue operations, or any post-disaster physical work
- Change of clothes — sealed in a zip-lock bag to keep dry. At minimum: one set of weather-appropriate clothing per person.
- Sturdy boots or shoes — disasters involve debris. Flip flops or bare feet create injury risk.
If Sheltering in Place
The Ironveil Shelter-in-Place Kit includes insulating window film, door draft seals, and tactical illumination for home shelter scenarios — useful if you’re sealing a room against chemical, biological, or radiological contamination, or simply maintaining warmth during an extended heating failure.
Category 4: Medical and First Aid
Principle: The 72-hour window is when untreated small injuries become serious infections. A complete first aid kit is non-negotiable.
Basic Kit Essentials
- Adhesive bandages (multiple sizes — don’t skimp)
- Sterile gauze pads and rolled gauze
- Medical tape
- Antiseptic wipes and antiseptic cream
- Tweezers and blunt scissors
- SAM splint
- Triangular bandage and safety pins (improvised sling, pressure bandage)
- Instant cold packs
- Disposable gloves (multiple pairs)
- CPR face shield
- First aid manual (print, not digital)
Medications
- Analgesic (ibuprofen or acetaminophen)
- Antihistamine
- Anti-diarrheal (critical in water scarcity scenarios)
- Prescription medications — maintain a minimum 7-day supply for any prescription medications your family depends on. Discuss refill strategy with your pharmacist; many insurers allow early refills for documented emergency preparedness.
The Ironveil Trauma & Wilderness First Aid Kit
Our medical kit goes beyond standard first aid: tourniquet, Israeli bandage for major wound management, burn dressing, eye wash, QuikClot hemostatic gauze, and a SAM splint capable of immobilizing extremity fractures. In a scenario without immediate hospital access, the difference between a first aid kit and a trauma kit matters.
Category 5: Communication and Navigation
Principle: During a disaster, your phone may lose signal, run out of battery, or become useless. Don’t depend on it.
What to Include
- Battery or hand-crank AM/FM/NOAA weather radio — the NOAA Emergency Alert System continues broadcasting during power outages. A hand-crank radio that also charges via USB solar panel is the gold standard.
- Two-way radios (pair) — for communication between family members when cellular networks are down. Effective range of 2–5 miles line-of-sight in most models.
- Whistle — three blasts is the universal distress signal. A quality survival whistle is audible at 100dB+ and carries over a mile. Every family member, including children, should have one.
- Portable phone charger (power bank) — at minimum 10,000 mAh capacity, fully charged. Charge it as part of your quarterly kit maintenance rotation.
- Physical maps — printed regional maps of your area. In a true grid-down scenario, Google Maps is useless. Know how to navigate to your rally point, your nearest shelter, and your family’s meeting location without a device.
Communication Plan
Write down and laminate:
- A designated out-of-area contact for all family members to check in with (long-distance lines often work when local networks are saturated)
- Two family meeting points: one near home, one further away if the neighborhood is inaccessible
- Phone numbers for key contacts without relying on your digital contacts list
Category 6: Documentation and Financial
Principle: After a disaster, your ability to access services, verify identity, and access funds may depend on physical documents.
What to Include (Copies, in a Fireproof, Waterproof Pouch)
- Passports and driver’s licenses
- Birth certificates
- Insurance policies (home, health, auto) with policy numbers and claim phone numbers
- Property deeds or rental agreements
- Bank account information and at least two credit card numbers written down
- Prescription medication records
- Veterinary records if you have pets
- Emergency contact list (printed)
Cash
Keep $200–$500 in small bills in your kit. ATMs are offline during power outages. Card systems are unavailable. Cash is universally accepted.
How to Organize and Store Your Kit
The Three-Layer System
Layer 1 — Go Bag (60–72 hour): A single backpack, 35–45L, that contains the minimum essentials to sustain your family for 72 hours if you must evacuate immediately. This is the bag by the door. Weight should be manageable — plan for the family member with the lowest load-carrying capacity.
Layer 2 — Home Cache: A storage container (rugged plastic tote, military surplus ammo can, or dedicated storage container) with extended supplies: 2 weeks of food, full medical kit, documents, more water treatment options. Lives in a closet, basement, or garage.
Layer 3 — Vehicle Kit: A smaller kit in each vehicle covering 48–72 hours for occupants. Includes food, water, basic first aid, emergency blankets, a change of clothes, and a roadside emergency kit.
Maintenance Schedule
- Monthly: Check expiration dates on medications and food. Confirm phone power bank is charged.
- Quarterly: Rotate fresh water into storage. Check batteries in radios and flashlights. Review your communication plan — has anything changed?
- Annually: Full audit of all kit contents. Replace expiring items. Update documents. Review your emergency plan as a family.
The IronHaven Home Preparedness Line
Ironveil’s IronHaven category was built specifically for household emergency preparedness — the overlap between survival readiness and everyday home safety that most outdoor brands don’t cover well.
The IronHaven 72-Hour Household Emergency Kit ships with the essentials for a family of four: food, water purification, emergency blankets, first aid basics, two-way radios, and a hand-crank NOAA radio — all organized in a labeled, compartmentalized storage bag. It’s the fastest path from zero to covered.
See the IronHaven collection →
Start Today
You don’t need to buy everything at once. If you’re starting from scratch, here’s the priority sequence:
Week 1: Water (12 gallons for a family of 4) + water purification tablets Week 2: 72-hour emergency food kit Week 3: First aid kit (trauma-level, not drugstore) Week 4: Communication (weather radio + two-way radios + power bank) Month 2: Shelter and warmth gear + documentation pouch Month 3: Full audit, organize into layers, review with your family
The goal isn’t perfection — it’s preparedness. A 70% complete kit put together now is worth more than a perfect kit planned for “someday.”