How to Cook Without Power: 7 Safe Outage Methods
Updated: 3 hours ago
When the power goes out at dinnertime, the first question in most houses isn't about generators or batteries. It's "What are we going to eat?" The good news is that you don't need electricity to eat well for a few days. You need a plan for what to eat first, a few safe ways to heat food, and one hard rule about where fuel-burning gear is allowed. This guide covers all three.
Quick answer: to cook without power, eat your fridge food first (it's safe for about 4 hours with the door shut), then your freezer food, then your pantry. Indoors, use only no-cook food, MREs with flameless heaters, a gas cooktop you can light with a match, or small warmers like chafing dishes and fondue pots. Grills, camp stoves and fuel-tablet stoves go outdoors only, at least 20 feet from windows and doors, per Ready.gov and the CDC.
The One Rule That Matters Most: Carbon Monoxide
Every year, outages turn deadly because someone brings a grill or camp stove inside to cook or keep warm. The CDC is blunt about it: never use a charcoal grill, hibachi, lantern or portable camping stove inside a home, tent or camper. Its carbon monoxide basics page adds: never burn charcoal indoors, never use a portable gas camp stove indoors, and don't cook or burn anything on a stove or fireplace that isn't vented.
Opening a window doesn't fix this. Carbon monoxide has no color or smell, and the CDC warns that people who are asleep or have been drinking can die from it before they notice any symptoms. Those symptoms, when they do show up, are headache, dizziness, weakness, nausea, vomiting, chest pain and confusion.
Keep a battery-powered or battery-backup CO alarm working on every level of your home (Ready.gov).
Never use a gas oven or stovetop to heat the house. Ready.gov says it raises your CO risk and can damage the appliance.
If anyone shows CO symptoms or your alarm sounds, get everyone outside and call 911 or Poison Control at 1-800-222-1222.
With that rule in place, here's how to actually feed your family.
Eat in This Order: Fridge, Freezer, Then Pantry
The smartest outage meal plan starts with food that's about to go bad. According to the CDC, if the doors stay closed, food stays safe for up to:
Where | How long it stays safe (doors closed) | What to do |
|---|---|---|
Refrigerator | About 4 hours | Eat or cook perishables first, or move them to a cooler with ice |
Full freezer | About 48 hours | Cook thawed food that still has ice crystals or is 40°F or below |
Half-full freezer | About 24 hours | Same rule, but you have half the time |
Pantry | Until the printed dates | Save it for last: it keeps |
Day 1, first few hours: leftovers, deli meat, milk, eggs and cut fruit. Plan one hot meal from the fridge if you can cook it safely (see the methods below). After 4 hours without power or a cold source, the CDC says to throw out refrigerated perishables like meat, fish, eggs, milk, cut fruit and leftovers.
Day 1 to 2: freezer food. Thawed meat that still has ice crystals or is at 40°F or below can be cooked. Pull the thinnest packages first, since the USDA's Food Safety and Inspection Service notes that small, thin items and food in the door thaw fastest.
Day 2 and beyond: pantry and shelf-stable food: canned goods, peanut butter, crackers, cereal, ration bars and MREs.
Keep a cheap food thermometer in your kit. When you cook fridge or freezer meat in an outage, the FDA says to cook it all the way to a safe minimum internal temperature. The FSIS safe temperature chart lists 165°F for all poultry and leftovers, 160°F for ground meat and eggs, and 145°F for steaks, chops, roasts and fish (with a 3-minute rest for the meat).
7 Ways to Cook Without Power (Safest Indoors First)
1. No-cook meals (indoors, zero fuel)
The easiest outage "cooking" is not cooking at all. Ready.gov's food guide points out that commercially canned food may be eaten out of the can without warming. Canned chili, beans, tuna, chicken, fruit and soup are all fully cooked. Add a manual can opener, peanut butter, crackers, dry cereal with shelf-stable milk, and protein bars, and you can eat for days without a flame.
No-cook food is also the right choice when you're exhausted, the kids are cranky, or the weather makes outdoor cooking dangerous. For which cans last longest and which to toss, see How Long Does Canned Food Last?
2. MREs with flameless ration heaters (indoors, just add water)
MREs were built for exactly this problem: a hot meal with no stove and no power. Most MRE menus include a flameless ration heater (FRH). You add a little water, slide the entrée pouch in, and a chemical reaction heats the food. The U.S. Army's Natick team, which developed the heater, says about an ounce and a half of water raises an 8-ounce entrée by 100 degrees in about 10 minutes.
Two safety notes. First, the reaction gives off hydrogen gas as a by-product (a U.S. Coast Guard safety alert explains the chemistry), so use the heater in a ventilated spot, away from open flames, and follow the printed directions. Second, the pouch gets hot, so keep it away from small kids. MRE entrées are fully cooked, so you can also eat them cold.
A case of MREs gives you 12 complete meals with entrées, sides, snacks and drink mixes, and the listing notes a flameless heater is included in most meals. Want to see if your family likes them first? Try a single MRE before you stock a case. To figure out how many to keep, use our Per-Person MRE Calculator, and see How Long Do MREs Last? for storage.
3. Your gas cooktop, if it lights with a match (indoors, for cooking only)
Many gas cooktops still work when the power is out, because the gas doesn't need electricity. Only the igniter does. GE Appliances, for example, explains how to light electric-ignition surface burners with a match during a power failure: hold a lit match next to the burner, then turn the knob to low. The same page notes that the oven can't be lit manually, because its ignition system and gas valve need power. GE also warns that if a burner blows out, gas keeps flowing until you turn the knob off.
Find your own range's manual now, before you need it, and read the outage section. Use the cooktop only to cook, keep a pot on the lit burner, never leave it unattended, and never use it to heat the room. Electric and induction cooktops won't work at all without power.
4. Chafing dishes, fondue pots and candle warmers (indoors, small jobs)
Ready.gov lists candle warmers, chafing dishes, fondue pots and a fireplace as alternative cooking sources in an emergency. These are slow and small. They're good for warming a can of soup or keeping a pot of chili warm, not for cooking raw meat for a family.
Treat any open flame like a candle: set it on a stable, non-flammable surface, keep it away from curtains, paper and kids, and never leave it burning when you leave the room or go to sleep.
5. Fireplace or wood stove (indoors, only if it's vented and maintained)
A working, vented fireplace or wood stove can heat water and simple foods in a cast-iron pan or foil packet. The CDC says to have your chimney checked or cleaned every year, since a blocked chimney can push carbon monoxide back into the house. If your chimney hasn't been inspected, don't make an outage the first test. This also only counts for a real, vented fireplace. Decorative or ventless units aren't for cooking.
6. Outdoor grill, charcoal or propane (outdoors only)
A backyard grill is the most powerful cooking tool most families own, and it's the best way to cook a freezer full of thawing meat. Use it the right way:
Outdoors only, at least 20 feet from windows, doors and vents (Ready.gov). Never in a garage, even with the door open.
Place it well away from the house, deck railings, eaves and overhanging branches, and keep kids and pets at least 3 feet back (NFPA). NFPA data shows nearly a quarter of grill structure fires started on a balcony or open porch.
For propane, check hoses and connections with soapy water before you need them. Bubbles mean a leak.
Never leave a lit grill unattended, and let coals cool completely before dumping them into a metal container.
Keep a spare propane tank or a bag of charcoal as part of your outage plan, stored outdoors and away from the house.
7. Camp stove or canteen cup stove (outdoors only)
A small stove lets you boil water and heat food on a porch step, in the yard or on a tailgate. The CDC treats portable camp stoves like grills: outdoors only. That includes small fuel-tablet stoves.
Before flameless heaters came along, soldiers heated their meals with fuel bars, canteen cups and cup stands, the Army notes. That setup still works today. The Rothco Aluminum Canteen Cup Stove and Stand is designed for heating liquids and MREs and is built to work with Rothco's canteen cup, so pair it with the Rothco G.I. Style Stainless Steel Canteen Cup. You'll need solid fuel tablets from an outdoor store. It's a compact way to boil a cup of water for coffee, oatmeal or a freeze-dried meal, and it packs into a go-bag. It's also a backup if your MRE heaters get wet.
Outage Cooking Methods Compared
Method | Indoors? | Fuel needed | Best for |
|---|---|---|---|
No-cook food | Yes | None | Every outage, the first meals |
MRE + flameless heater | Yes, with ventilation | A little water | Hot meals with no stove |
Gas cooktop lit by match | Yes, cooking only | Your gas line | Real cooking at home |
Chafing dish / fondue pot | Yes, attended | Gel or candle fuel | Warming cans and soup |
Vented fireplace / wood stove | Yes, if inspected | Firewood | Water, simple pan meals |
Grill (charcoal or propane) | No: outdoors only | Charcoal or propane | Cooking thawing meat |
Camp or canteen cup stove | No: outdoors only | Fuel canister or tablets | Boiling water, small meals |
How to Heat Canned Food Safely
Ready.gov's three steps for heating food in its can:
Remove the label.
Wash and disinfect the can. Ready.gov suggests a diluted solution of 1 part bleach to 10 parts water.
Open the can before you heat it. A sealed can can burst.
Set the opened can on a grill grate or in a pot of water, and stir so the food heats evenly. Use tongs or a glove, since the metal gets very hot. Don't eat from cans that are swollen, dented or corroded, even if the food looks fine.
Boiling Water Without Power
Hot water covers a lot: coffee, oatmeal, instant rice, freeze-dried meals and washing up. If your tap water is under a boil notice, the CDC says to bring clear water to a rolling boil for 1 minute, or 3 minutes above 6,500 feet, then let it cool. If water is cloudy, filter it through a clean cloth or coffee filter first. Boiling kills germs, but it doesn't remove chemicals.
Count cooking water in your stored supply. Rice, pasta and dehydrated meals all use water you'd otherwise drink. Our water storage guide has the per-person math.
Winter and Summer Outages Change the Rules
Winter: it's tempting to put fridge food in the snow. The FSIS says not to, because outdoor temperatures swing and animals get into it. Instead, fill buckets or clean containers with water, set them outside to freeze, and use that ice in your fridge, freezer or cooler. Cold weather also makes hot food more than comfort. For staying warm safely, see our winter power outage guide.
Summer: heat shortens every clock. The FDA says to discard perishable food left at room temperature for 2 hours or more, or 1 hour if it's above 90°F outside. Cook fridge food early in the day and lean on no-cook meals.
Printable Checklist: Your No-Power Kitchen Kit
Keep these in one bin so you're not hunting in the dark:
Manual can opener (and a backup)
3+ days of no-cook food your family actually eats
MREs or other ready-to-eat meals with heaters
Food thermometer
Cooler and frozen gel packs or jugs of ice
Appliance thermometers in the fridge and freezer
Long matches or a lighter for a gas cooktop
Your range's manual, with the outage section marked
Outdoor grill with spare propane or charcoal (stored outdoors)
Canteen cup stove, steel cup and fuel tablets for outdoor use
Paper plates, utensils, foil, trash bags and hand sanitizer
Battery-powered or battery-backup CO alarm on every level
Headlamp or flashlight for cooking after dark (see Best Flashlight for Emergencies)
FAQ
Can I use my gas stove during a power outage?
Often, yes, for cooking. Many gas cooktop burners can be lit with a match when the igniter has no power, but check your manual, because models differ. Gas ovens with electronic controls usually won't work without power. Never use a gas stove or oven to heat your home (Ready.gov).
Can I use a camp stove or grill inside if I open a window?
No. The CDC says never to use a charcoal grill, hibachi or portable camping stove inside a home, tent or camper, and open windows don't make it safe. Use them outdoors, at least 20 feet from windows, doors and vents.
Are MRE heaters safe to use indoors?
Flameless ration heaters have no flame, and people use them indoors. They give off hydrogen gas and get very hot, so use them in a ventilated area, away from flames and children, and follow the instructions printed on the heater.
What should I eat first when the power goes out?
Start with refrigerator food, which stays safe for about 4 hours with the door closed. Then move to freezer food (about 48 hours if the freezer is full, 24 if it's half full), and save canned and shelf-stable food for last (CDC).
Safety note: this guide is general information, not professional advice. If anyone has symptoms of carbon monoxide poisoning or food poisoning that's severe, call 911.
Sources: Ready.gov (Food; Power Outages), CDC (power outage safety; carbon monoxide basics; keeping food safe after an emergency; making water safe), USDA FSIS (keeping food safe during emergencies; safe minimum internal temperatures), FDA (food and water safety during power outages), U.S. Army Natick (flameless ration heater), U.S. Coast Guard (FRH hydrogen safety alert), NFPA (grilling safety), GE Appliances (gas range power outage support).
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