question: I am worried because I heard that power outages are frequent during winter storms. How long can food in the refrigerator and freezer last during a blackout? Also, please let me know if there is anything I should prepare in advance.
answer: The most important principle during a power outage is Not opening the doorIt is. The guide to public health agencies is summarized as follows.
1. Refrigerator: about 4 hours, Freezer: up to about 48 hours
A refrigerator that has not had its door opened stays cold (4°C or below) for about 4 hours. A freezer stays cold for about 48 hours when full and about 24 hours when half full. You can extend the time a little longer by using ice or an ice box.
2. Distinguish between food to throw away and food to save.
It is safe to discard perishable foods, such as meat, poultry, fish, seafood, eggs, milk and dairy products, leftovers, and cut fruits and vegetables, if they have been kept above 4°C for more than two hours. Do not judge by taste; if you are unsure, discard them. Conversely, frozen foods that still have ice crystals or feel as cold as a refrigerator can be refrozen.
3. Prepare an emergency kit to last 72 hours in advance.
The Canadian government recommends preparing to survive on your own for at least 72 hours in an emergency. Keep 2 liters of water per person per day, non-perishable food and a manual can opener, a flashlight with spare batteries, a battery-operated or manual radio, basic medicines and first-aid supplies, and small bills in one bag. Flashlights pose less of a fire risk than candles.
4. Carbon monoxide is the most dangerous.
Never use generators, charcoal barbecues, or camping heaters inside the house or in the attached garage. They emit carbon monoxide. Always use generators outdoors, away from doors and windows.
5. Sequence immediately after the power outage
First, check if your neighbors are also experiencing a power outage, and if it is only your house, check the circuit breaker. If the power is out throughout the entire area, notify the power company. To prepare for voltage surges when power is restored, turn off your appliances, and it is also a good idea to leave only one light on so you can tell if the power has been restored.
Source: Huron Perth Public Health 'Ensuring food and water safety during and after a power outage' · Canadian Red Cross 'Power Outages' information · https://www.hpph.ca/news/posts/ensuring-food-and-water-safety-during-and-after-a-power-outage/ · https://www.redcross.ca/how-we-help/emergencies-and-disasters-in-canada/types-of-emergencies/power-outages
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