How to build a go-bag

Emergency 10 min read

Why most bags fail when needed, water planning and purification methods, 72-hour no-cook food supply, critical documents and digital backups, prescription medications and first aid including tourniquet use, and communication tools that work when cell networks don't.

Show me the detail for:

A goFrigg account keeps the steps you mark done on every device you sign in on.

Saved on this device only. A goFrigg account keeps the steps you mark done on every device you sign in on.

The steps

1

Why most go-bags fail when needed

A go-bag is only useful if you can grab it in 90 seconds and everything inside is current. Most aren't. The three failure modes are consistent across studies of post-disaster households: the bag is inaccessible, it is overpacked and heavy to the point of being abandoned, or its contents expired or became outdated months before the event.

  • Inaccessible bag: Stored in a closet behind other items, in a garage, or split across multiple locations. A go-bag that requires 10 minutes to locate and assemble in the dark is not a go-bag; it is a storage bin with good intentions. The bag should be within arm's reach of your primary exit point. For households with multiple exits or floors, a second, lighter bag on the upper floor is not redundant; it is correct planning.
  • Over-packed bags: The impulse to include everything valuable leads to a bag that weighs 50+ lbs and gets abandoned at the end of the driveway. The operational rule used by emergency management professionals is 72 hours of survival, not 2 weeks of comfort. Everything that goes in the bag must be weighed against its weight-to-utility ratio. A 72-hour bag for one adult should weigh 15 to 25 lbs, less if the individual has physical limitations. If yours is heavier, items need to come out.
  • Outdated contents: Food expires. Medications are refilled on prescriptions that change. Documents become outdated. Batteries discharge. Children grow out of the clothes packed for them. A go-bag that is assembled once and stored indefinitely will fail on at least one of these axes. Set a calendar reminder for the same date each year (many people use Daylight Saving Time, when they change smoke detector batteries) to open the bag completely, inspect every item, and refresh anything that has expired or changed.
  • No plan to go with the bag: A bag without a destination plan means standing in the driveway deciding where to go during a crisis. Decisions made under stress with incomplete information are consistently worse than decisions made in advance. Where will you go if your primary residence is inaccessible? Who is your out-of-area contact? What is the meeting point if your family is separated? The bag is the physical tool; the plan is what makes it useful.
  • Three failure modes: inaccessible bag, overweight bag (abandoned at the driveway), outdated contents.
  • Operational standard: 72 hours of survival. One adult = 15-25 lbs. Heavier = items need to come out.
  • Annual inspection: rotate food and medications, verify documents, recharge power bank, check batteries. Many people use Daylight Saving Time as the recurring trigger.
  • The bag requires a destination plan. Meeting point and out-of-area contact decided in advance, not at the driveway under stress.
2

Water: the non-negotiable item

  • How much to carry: FEMA and the Red Cross both specify one gallon per person per day as the minimum. A 72-hour bag for one adult therefore requires 3 gallons of water, which weighs approximately 25 lbs. That weight alone exceeds a well-packed bag and explains why most go-bags use a hybrid approach: carry 1 liter of ready water per person and include a purification method to obtain additional water from available sources en route or at a destination.
  • Purification tablets: Iodine and sodium hypochlorite (bleach) tablets are the lightest and most compact purification method. They are effective against bacteria and most viruses but not against Cryptosporidium without a 4-hour contact time or a combination formula. Aquatabs and Potable Aqua are the most widely distributed brands. Each tablet weighs nearly nothing. Carry one full bottle per bag. Limitation: tablets leave a chemical taste and are slower than filtration.
  • Portable filter: A Sawyer Squeeze or LifeStraw Mission removes bacteria and protozoa down to 0.1 micron but does not remove viruses (viruses are smaller). In North American surface water sources after a natural disaster, bacterial and protozoan contamination is the dominant risk; viral contamination is more associated with sewage-affected water in dense populations or international settings. For domestic go-bag use, a quality filter is appropriate. For international or large-scale infrastructure-failure scenarios, pair the filter with halogen tablets.
  • UV pen (SteriPen): Kills viruses, bacteria, and protozoa through UV-C light exposure in 90 seconds per half-liter. Requires batteries (keep spares in the bag) and only works in clear water; turbid water must be pre-filtered through a cloth before treatment. UV pens are the most complete single-tool purification option for personal use. The tradeoff is battery dependence and fragility compared to passive tablet methods.
  • Storage containers: Collapsible 2-liter water bladders (Platypus, CNOC) weigh almost nothing and pack flat when empty. They are significantly more practical for a go-bag than rigid bottles, which take up space whether full or empty. Include at least two: one for carrying treated water and one for collecting untreated water before purification.
  • Minimum: 1 gal/person/day; 72-hr supply = 3 gal per person (25 lbs). Most bags use hybrid: 1L ready water per person + purification method.
  • Tablets (Aquatabs, Potable Aqua): lightest option; not effective against Cryptosporidium without 4-hr contact time or combination formula; chemical taste.
  • Filter (Sawyer Squeeze, LifeStraw): removes bacteria and protozoa to 0.1 micron; does not remove viruses. Appropriate for North American domestic use. International or infrastructure-failure scenarios: pair with halogen tablets.
  • UV pen (SteriPen): kills viruses + bacteria + protozoa in 90 sec per 0.5L; requires clear water and batteries. Most complete single-tool option.
  • Collapsible 2L water bladders (Platypus, CNOC): at least two per bag: one for treated water, one for collecting before purification.
3

Food: 72-hour supply

The calorie target for a mobile evacuation scenario is 1,200 to 1,800 calories per adult per day, less than normal intake, but adequate for reduced activity levels. Children, pregnant women, nursing mothers, and individuals doing physical labor need more. Do not try to maintain normal caloric intake from go-bag food; prioritize density and shelf stability.

  • Ready-to-eat options (no cooking required): Commercial energy bars (Clif, Kind, or military-spec emergency ration bars rated at 3,600 calories per bar) are the most practical go-bag food because they require no preparation, no water, and no utensils. US Coast Guard-approved 3,600-calorie emergency ration bars carry a long rated shelf life (check the date on the package) and are inexpensive per bar. Pack enough for your household's 72 hours in a single layer at the top of the bag for rapid access.
  • Supplemental no-cook foods: Nut butter packets, trail mix, jerky, crackers, and tuna or salmon pouches (not cans: pouches require no opener and less weight). Each of these items has a 1 to 2 year shelf life and requires no preparation beyond opening the package. Avoid anything requiring refrigeration after opening, extended cooking, or significant water for rehydration; water is already weight-constrained in the bag.
  • The can opener problem: If your go-bag contains any canned goods, there must be a manual can opener in the bag at all times, not in the kitchen drawer. This sounds obvious and is the most frequently violated rule in go-bag inspections. The solution is to use pouches instead of cans entirely, which also saves weight. If you prefer cans, a P-38 military can opener weighs 0.4 oz and is inexpensive. Attach it to the bag's zipper.
  • Special dietary requirements: Pack for your actual household, not a hypothetical average household. Diabetic family members need food that is compatible with their blood glucose management. Infants need formula or food appropriate to their age. Pets need food and water. Allergies must be accommodated across every item in the bag, not just the primary meals. A go-bag that contains peanut products when a household member has a nut allergy is a liability.
  • Annual rotation: Write the bag pack date on a piece of tape on the outside. Set a recurring annual calendar alert. At rotation, consume the food from the bag over the following month and replace with fresh stock. Do not discard it. Rotation keeps the bag stocked with current-expiry food at zero net cost.
  • Target: 1,200-1,800 cal/adult/day for mobile evacuation. Prioritize caloric density and shelf stability over variety.
  • Best option: USCG-approved 3,600-cal emergency ration bars (long rated shelf life, no water or prep required). Pack enough for 72 hours at the top of the bag for rapid access.
  • Supplemental no-cook: nut butter packets, trail mix, jerky, crackers, tuna/salmon pouches (not cans). Avoid anything needing rehydration water; water is already weight-constrained.
  • Cans require a P-38 in the bag at all times (not in the kitchen drawer). Simplest fix: use pouches instead of cans entirely.
  • Pack for your actual household: dietary restrictions, infant formula, pet food and water. Write pack date on the bag. Annual rotation: consume and replace, zero net cost.
4

Documents, records, and identification

Document loss after a disaster is one of the longest-lasting complications for affected households. Replacing a passport, birth certificate, Social Security card, and insurance documentation during or after a disaster involves significant bureaucratic effort at the moment you least have capacity for it. The solution is cheap and takes two hours to implement once.

  • Physical copies in a waterproof pouch: A gallon zip-lock freezer bag is inexpensive and waterproof. Use it. Include: passport or passport card (for all family members), birth certificates, Social Security cards (photocopies only; leave originals in a fireproof home safe), marriage and divorce certificates if applicable, military discharge papers (DD-214) if applicable, property insurance declaration page, auto insurance card, health insurance cards, prescription medication list with prescribing physician contact, and the deed or lease for your primary residence. Update this pouch whenever any of these documents change: new insurance policy, new passport, new prescriptions.
  • Digital backup: Photograph every document above with your phone in good light. Store in a password-protected folder in cloud storage (Google Drive, iCloud, or Dropbox) that you can access from any device or from a borrowed device. Also email the complete set to yourself and to a trusted out-of-area family member. An emailed document set is accessible from any internet connection anywhere, which matters when your phone is lost, stolen, or dead.
  • Financial records and access: Include one or two credit cards from different networks (Visa and Mastercard) and some cash in small bills, $20s and smaller. ATMs often fail during power outages, and many small businesses operating on emergency protocols during a disaster accept cash only. Know your bank account numbers and have them written down (not in a shared digital file) so you can access accounts from a branch with ID if cards are lost.
  • Medical records: Include a one-page medical summary for each household member covering: blood type, known allergies, current medications with dosages, primary physician name and contact, health insurance policy number, and any implanted devices (pacemaker, cochlear implant, insulin pump). This document is what emergency medical personnel ask for at intake; having it ready saves time and prevents errors when the patient cannot communicate clearly.
  • Waterproof pouch (gallon freezer bag): passport or passport card for all family members, birth certificates, SSN cards (photocopies; originals in fireproof safe), insurance declaration pages, health insurance cards, prescription medication list, deed or lease. Update whenever any document changes.
  • Digital backup: photograph all documents; store in a password-protected cloud folder (Google Drive, iCloud, or Dropbox). Email the full set to yourself and an out-of-area family member, accessible from any device or borrowed device.
  • Cash: some in $20s and smaller. ATMs fail during outages; small businesses operating on emergency protocols are often cash-only. Know bank account numbers.
  • Medical summary per household member (one page): blood type, allergies, current medications with dosages, physician name and contact, insurance policy number, implanted devices. What emergency personnel ask for at intake.
5

Medications and first aid

  • Prescription medications, the 7-day rule: The minimum target is a 7-day supply of all prescription medications in the go-bag. In practice, this is the hardest go-bag item to maintain because prescriptions are tightly controlled. Strategies: ask your physician for a written emergency supply prescription, use a mail-order pharmacy that dispenses 90-day supplies (allowing a 7-day buffer to be set aside and rotated), or simply rotate the go-bag supply from the current month's prescription and immediately reorder. Never let the go-bag supply sit for more than 3 months without rotating it with fresher stock from the current prescription.
  • Critical medications first: Insulin, epinephrine auto-injectors (EpiPen), nitroglycerin, blood thinners, anti-seizure medications, and psychiatric medications all carry severe consequences if missed even for 24 to 48 hours. These categories require particular planning: know the cold storage requirements for each (insulin must be refrigerated once opened; EpiPens degrade faster in heat), have a plan for cold chain maintenance during an extended evacuation, and include spares for devices like glucose meters and test strips.
  • Over-the-counter medications to include: Pain reliever/fever reducer (acetaminophen and ibuprofen, because some individuals cannot take one or the other), antihistamine (diphenhydramine; also serves as a sleep aid in high-stress situations), anti-diarrheal (loperamide; stress and unfamiliar water are significant GI triggers during a disaster), antacid, electrolyte tablets or oral rehydration salts (particularly for children, elderly, and anyone on diuretics), and moleskin or blister treatment for anyone who will be walking significant distances.
  • First aid kit, what actually gets used: Commercially available first aid kits include many items that see minimal use (large sterile pads, butterfly closures) and often omit what is actually needed. Prioritize: nitrile gloves (at least 4 pairs), adhesive bandages in multiple sizes, rolled gauze and medical tape, SAM splint (compresses flat, weighs almost nothing), emergency thermal blanket, irrigation syringe for wound cleaning, antiseptic wipes (not liquid antiseptic; wipes pack better), and a CPR face shield. For households with trained members, include a tourniquet (CAT or SOFT-T Wide) and hemostatic gauze (QuikClot); these are now standard in civilian emergency preparedness recommendations from the Stop the Bleed campaign.
  • Contact lens wearers: Include a backup pair of prescription glasses in the go-bag. A contact lens wearer who loses their lenses or solution during an evacuation and has no glasses backup has a significant functional impairment. Glasses are cheaper than the downstream cost of this scenario.
  • 7-day prescription supply minimum. Rotate every 3 months. Strategies: 90-day mail-order supply allows a buffer; ask physician for a written emergency prescription.
  • Critical medications first: insulin (check cold storage requirements; once opened, stable at room temp for 28 days for most types), EpiPens (degrade faster in heat), blood thinners, anti-seizure, psychiatric medications. Have a cold chain plan for each.
  • OTC to include: acetaminophen + ibuprofen, antihistamine (diphenhydramine), anti-diarrheal (loperamide), antacid, electrolyte tablets or ORS, moleskin.
  • First aid priorities: nitrile gloves (4+ pairs), adhesive bandages, rolled gauze + medical tape, SAM splint, emergency thermal blanket, irrigation syringe, antiseptic wipes, CPR face shield. Trained members: CAT tourniquet + QuikClot hemostatic gauze (Stop the Bleed standard).
  • Contact lens wearers: backup prescription glasses in the bag.
6

Communication, navigation, and power

During a regional emergency, cell networks often experience overload or failure within the first hours. Power outages take cellular towers offline. The communication plan must not depend on cell service as the primary or sole method.

  • NOAA Weather Radio: A battery-powered or hand-crank NOAA Weather Radio (Midland ER310 and similar) receives official NWS and Emergency Alert System broadcasts independently of cell and internet infrastructure. It is inexpensive, light, and functions when everything else has failed. This is the single most important communication tool in a go-bag that most people omit. Many models also include a USB charging port for phones using a hand-crank generator, a meaningful secondary benefit.
  • Paper maps: GPS requires power and, for many navigation apps, a data connection. A road atlas for your state (the Rand McNally State Atlas series is inexpensive and is waterproof if stored in a zip-lock bag) and a county map showing back roads, evacuation routes, and bridge locations is a zero-failure-mode navigation tool that requires no power. Highlight your two primary evacuation routes and your two alternate routes on the map before storing it. Mark your designated out-of-area meeting point.
  • Phone charging: A 20,000 mAh USB power bank provides approximately 4 to 5 full smartphone charges. Charge the power bank every 3 months when rotating bag contents; a power bank stored for 6+ months may discharge to the point it no longer charges. Keep a charging cable for each household member's phone type in the bag, not just a single cable. USB-C to USB-C cables are now more common, but older devices still use Micro-USB or Lightning. Know your household's mix.
  • Family communication plan: Designate one out-of-area contact (a relative or friend in another region) as the communication hub. Every family member calls or texts that contact after separation; the contact then relays information to other family members. Local calls are often impossible during a regional event while long-distance calls and texts succeed, because carrier infrastructure prioritizes differently by distance. Write the out-of-area contact's number on a card in the document pouch; memorizing it is better, but a card is the backup.
  • Lighting: A headlamp (not a handheld flashlight) with fresh batteries stored separately to prevent discharge. Headlamps allow hands-free operation, essential for setting up shelter, moving through debris, or attending to children at night. A chemical lightstick (glowstick) as a backup requires no batteries and can mark a location or provide ambient light for 8 to 12 hours. Carry at least one per family member.
  • NOAA Weather Radio (Midland ER310 or similar): battery or hand-crank; receives NWS and EAS broadcasts without cell or internet. Most important communication tool most people omit from their bag.
  • Paper road atlas + county map with evacuation routes highlighted: no battery, no data connection. Mark primary routes, two alternates, and out-of-area contact numbers on the same page. One copy per vehicle glove box, one in the go-bag.
  • 20,000 mAh power bank: 4-5 full phone charges. Recharge every 3 months. Include the right charging cable for each household member's device type.
  • Out-of-area contact as communication hub: all family members reach this person after separation; they relay to others. Long-distance calls often succeed when local calls fail. Contact number on a card in the document pouch, and memorized.
  • Headlamp (hands-free) + chemical lightstick backup per person. Fresh batteries stored separately to prevent self-discharge.

These articles are provided for general informational purposes only and do not constitute professional, legal, safety, or emergency advice. Content reflects conditions at the time of publication and may be out of date, laws, regulations, facility rules, and equipment standards change. Always verify requirements with the governing authority for your jurisdiction, vessel class, and specific situation. goFrigg makes no representations about the completeness or accuracy of this content and is not responsible for outcomes resulting from actions taken based on these articles. In an emergency, contact emergency services immediately, do not rely solely on this content. Trailering, boating, and storage carry inherent risks. Consult qualified professionals before acting. See our Privacy & Terms for full disclaimers.

Get a little ahead of it

Keep every guide in one place

Save the guides you need and check off the steps as you go. Starting is free, and you can leave whenever.