Eggs have small pores which harmful bacteria can enter. Even shells that appear clean can carry germs. Even so, eggs do not need to be washed.
Wash eggs in warm water.
The warm tap water will draw out any dirt and bacteria from the shell; cold water can cause bacteria to go below the surface of the eggshell. Avoid any cleaning agents such as bleach, soap, or detergent. Eggshells are porous, so any chemicals will pass through the shell pores into the eggs.
Is washing of eggs recommended? No, because washing may aid the transfer of harmful bacteria like Salmonella from the outside to the inside of the egg. The priority in egg production is to produce clean eggs at the point of collection, rather than trying to clean them afterwards.
Washing dirty eggs removes the bloom and invites bacteria to be drawn inside the egg. And washing eggs in cool water actually creates a vacuum, pulling unwanted bacteria inside even faster.
Egg washing is not required in Australia, but sale of dirty eggs is prohibited by Food Standards Australia New Zealand (FSANZ). Storing washed eggs below 7°C can help reduce the ability of Salmonella to grow.
Food Standards Australia New Zealand's Response
The statement continues to say that refrigerating whole eggs is not required because: The Salmonella bacteria which can contaminate an egg while it's inside the bird isn't present in Australian eggs.
Refrigeration is not the silver bullet that eliminates the risk of Salmonella in Australia because Salmonella risk reduction is multifactorial and complex and includes safe food handling techniques in the kitchen while preparing meals. Eggs are a fresh food product.
Fresh eggs, even those with clean, uncracked shells, may contain bacteria called Salmonella that can cause foodborne illness, often called “food poisoning.” FDA has put regulations in place to help prevent contamination of eggs on the farm and during shipping and storage, but consumers also play a key role in ...
The best prevention is to reduce the number of dirty eggs. However, since even shells that appear clean may carry germs, all eggs should be properly cleaned and sanitized. Harmful bacteria can enter eggs through pores in the shell when laid in dirty/contaminated nests or floors.
Large commercial egg producers spray their eggs with a chemical sanitizer before they package them, to reduce the risk of bacteria like salmonella contaminating the egg. When eggs are washed, the "bloom" is removed, leaving the egg pores open to potential new bacteria.
Some farmers choose to wash, some do not, but in any event, avoid eggs with obvious dirt, remnants of bedding or feces on them. And be sure the cartons are clean. They can be reused, but must have no evidence of dirt, feces, or raw egg residue.
Unwashed eggs have a protective layer called a cuticle (also referred to as the bloom) and can be stored on the counter. This protective coating works by sealing the shell's pores and preventing air from penetrating it, helping to keep bacteria out.
Washing eggs allows bacteria to move from the outside of the shell to inside the egg. Never wash eggs and throw away all dirty eggs. Salmonella is the most commonly reported bacteria responsible for foodborne illness outbreaks and is usually associated with eggs and egg products.
Unwashed eggs can sit on your kitchen counter at room temperature for a couple of weeks and they'll still be edible. But once they've touched water, they need to be refrigerated. Store-bought eggs have been cleaned so they need to go in the fridge.
At the grading station, eggs are washed in a sanitizing solution and scrubbed with revolving brushes to remove dirt and any bacteria that may be found on the shell. There is no need to wash your eggs at home.
It's not necessary to use any soaps or detergents. Unwashed eggs will last at least two weeks unrefrigerated, and three months if refrigerated. Washed eggs should be refrigerated, and will last at least two months, but won't taste as fresh as an unwashed egg of the same age.
The eggs stored in cold temperature tend to undergo condensation when they are taken out to room temperature. This promotes the growth of bacteria over the egg shell, thereby contaminating the egg and making it harmful for human consumption.
You don't need to refrigerate farm fresh eggs. Eggs are laid with a near invisible coating called the "bloom" or "cuticle" on the shell. What is this? This coating helps keep air and bacteria out of the egg, keeping the egg fresher longer.
Storing fresh eggs in the refrigerator significantly increases their shelf life. It is perfectly fine to store unwashed fresh eggs in the refrigerator for 2 to 3 months! Washed eggs will lose moisture and quality sooner, but may still be safe to consume within that same timeframe.
According to eggs.org.au (best domain name ever), the cartons we see on the shelves of Australian supermarkets contain eggs that were laid up to 42 days ago. That's six weeks. All we have to go by, traditionally, is the 'use-by' date. Or the even more confusing 'best before'.
The Europeans, on the other hand, don't wash their eggs in order to rely on this natural “cuticle” to protect from contamination entering the egg. Many European countries, like the UK, vaccinate their hens to prevent the transmission of salmonella when the hens lay eggs.
Why It's Not Safe. Unfortunately, eggs left out on the counter for too long need to be tossed. This is because eggs are susceptible to salmonella contamination due to how they're processed before they get to the grocery store. Salmonella is also the reason you shouldn't be eating raw eggs.
Refrigerated eggs should not be left out for more than two hours. What's the best way to store eggs? The best way to keep eggs is to store them in their original carton in the refrigerator as soon as possible after purchase. Cartons reduce water loss and protect flavours from other foods being absorbed into the eggs.
They are not stored in the fridge in shops because they would amass condensation on your way home and this is what will encourage contamination through the shell.
Best practice is to store eggs in the fridge; that way the temperature is always at a constant and your eggs will be fresher!