This browser does not support the Video element.
Winter storm sweeps across US
Major winter weather hammered much of the United States this week, with many areas seeing rare snow and unusually low temps. (Source: FOX)
DALLAS - Food demand is soaring in Texas amid a deadly winter storm that's left 500,000 without power, unable to eat what they may have had in the fridge for safety's sake. In the event of such an emergency, what can you keep and what should you toss?
Refrigerated and frozen foods may not hold up and have the potential to make consumers sick when the power goes out. The Centers for Disease Control and Prevention (CDC) recommends keeping thermometers in your fridge and freezer to ensure refrigerators are at 40°F or below, and that the freezer remains at 0°F or below.
RELATED: Price gouging plagues Texans searching for lodging, necessities amid winter storm
Further CDC guidance also suggests freezing containers of water and gel packs to help keep food at 40°F or below. If available, store a cooler with frozen gel packs for a short-term solution to keeping frozen foods cold, or use dry ice, the national public health institute says, as another option to keep food chilled in the refrigerator.
This browser does not support the Video element.
Long lines form outside Texas grocery store amid winter storm power outages
A long line formed outside a supermarket in Austin, Texas, on Tuesday, February 16, after storms caused widespread power outages across the state.
Once the power goes out, keep fridge and freezer doors closed. Food will be safe to consume if the doors stay closed for four hours in the refrigerator and 48 hours in a full freezer (24 hours in a half-full freezer), according to the CDC. After that, health experts say to transfer perishable foods into a cooler.
Throw away perishable foods such as meat, fish, cut fruits, vegetables, eggs, milk and any leftovers after four hours, the guidance says. Be sure to monitor the temperature of food that’s kept in coolers, too.
RELATED: Abbott blames Texas' power crisis on ERCOT, calls for investigation
Foods such as hard cheeses, butter, dried fruits, breads, frozen waffles and pancakes, raw vegetables, herbs and condiments are also safe to keep in the short term during power outages, according to The Kitchn.
Consumers can refreeze or cook thawed frozen food that’s at 40°F or below per CDC guidance.
Get updates on this story at FOXNews.com.