Safety of Specific Food Products Hard cheese, butter and margarine: Well packaged products should remain safe; if odors or mold develops, discard the items. Milk products and mayonnaise: Discard if held above 40ºF for more than 2 hours. This category includes milk, cream, yogurt, and soft cheeses.
General Food Safety of Refrigerated Foods
Refrigerated foods that can be held at temperatures above 40ºF until power returns include: hard cheeses, butter, margarine, fresh fruits, fruit juice, fresh unpeeled vegetables, salad dressing, ketchup, mustard, olives, pickles, jams, jellies and peanut butter.
Discard refrigerated perishable food such as meat, poultry, fish, eggs, and leftovers after 4 hours without power. After a power outage never taste food to determine its safety.
According to FoodSafety.gov, food stored in the refrigerator is still safe to eat for no more than four hours, while a full freezer will keep its temperature for about 48 hours (24 hours if half-full). Once the temperature inside the refrigerator reaches 40°F or higher, perishable food is only good for two more hours.
Hard cheeses, like cheddar or swiss, are safe to keep in brick form. Soft cheeses and hard cheeses that have been shredded should be tossed if they were kept above 40 degrees Fahrenheit for 2 hours or longer.
Discard opened mayonnaise, horseradish and tartar sauce if held above 50o F for more than 8 hours. Discard milk, cream, sour cream, yogurt, cream cheese, soy milk and eggs if held above 40o F for more than 2 hours.
Meat products at temperatures above 40ºF for more than 2 hours are potentially unsafe and must be discarded. Hard cheese, butter and margarine: Well packaged products should remain safe; if odors or mold develops, discard the items. Milk products and mayonnaise: Discard if held above 40ºF for more than 2 hours.
Discard refrigerated perishable food such as meat, poultry, fish, soft cheeses, milk, eggs, leftovers, and deli items after 4 hours without power or 2 hours after the temperature rises above 41 °F. At any time, discard spoiled, moldy food and anything that does not look or smell right.
If any perishable or potentially hazardous foods have exceeded 40 degrees F for more than two hours, throw it away.
Everyone wants to keep their milk fresh as long as possible, but did you know that how long your milk sits out can impact that? In general, perishable foods like milk should not sit out of the refrigerator or cooler for longer than two hours.
Keep the refrigerator and freezer doors closed as much as possible to maintain the cold temperature. The refrigerator will keep food cold for about 4 hours if it is unopened. A full freezer will keep the temperature for approximately 48 hours (24 hours if it is half full) if the door remains closed.
Steps to take after a power outage
When in doubt, throw it out. Throw out perishable food in your refrigerator (meat, fish, cut fruits and vegetables, eggs, milk, and leftovers) after 4 hours without power or without a cold source like ice. Throw out any food with an unusual smell, color, or texture.
Use dry ice to keep milk frozen.
Dry ice can usually be found at a local grocery store. Other stores such as Wal-Mart, ice distributors and others also have dry ice and coolers for sale – check out their websites before heading out.
The USDA recommends leaving butter out at room temperature for only a day or two. But if it's stored in all of the proper conditions listed above, it can stay fresh for up to two weeks. So don't leave out more than you think you'll be able to get through in that small period of time.
Milk has been named the item most likely to expire in the fridge, according to new research. A survey of 2,000 Americans has revealed that 46 percent say they've been caught by a sour scent in their bottle or carton.
Butter is high in calories and fat—including saturated fat, which is linked to heart disease. Use this ingredient sparingly, especially if you have heart disease or are looking to cut back on calories. The American Heart Association's current recommendation is to limit your consumption of saturated fat.
Things like butter or margarine, fresh fruits that are uncut, fruit juices, peanut butter, ketchup and jelly are safe to eat after four hours without power.
Think about the fact that your refrigerator relies on electricity to keep running, and if the power goes out, all of your perishable foods, including milk and beverages are in danger of going bad.
The type of cheese is the biggest consideration - hard cheese will last longer and is less likely to pose a health risk, while soft and fresh cheeses should remain refrigerated and only be left out for two hours at most. No matter the cheese, leaving it out for more than two hours may change the quality and taste.
To reduce Salmonella growth, eggs gathered from laying hens should be refrigerated as soon as possible. After eggs are refrigerated, they need to stay that way. A cold egg left out at room temperature can sweat, facilitating the movement of bacteria into the egg.
Freshly expressed breast milk can be kept at room temperature for up to six hours. However, it's optimal to use or properly store the breast milk within four hours, especially if the room is warm. Insulated cooler. Freshly expressed breast milk can be stored in an insulated cooler with ice packs for up to one day.
Is it still okay to eat? Like all items that require refrigeration (including leftovers), mayo has a two-hour rule. The USDA recommends not leaving mayo out at room temperature for more than two hours before moving it back into the fridge.
“Always return any unused butter to the refrigerator and be aware that butter left outside refrigeration may become darker in color and have the flavor affected.” Keeping butter in the fridge is a good rule of thumb as it ensures the tasty fat won't take on any undesirable odors or flavors from your kitchen.