In Europe it's a health risk to store eggs in the fridge. In Australia, it's a health risk to store them out of the fridge. Who is right? The answer is all about Salmonella, the general name for about 2,000 types of bacteria that lead to food poisoning.
In Australia, most egg producers recommend storing eggs below 15C. This makes the fridge the best place for them. The Australian Eggs organisation also recommends a “climate-controlled refrigerated environment” for storing eggs.
A cold egg left out at room temperature can sweat, facilitating the growth of bacteria that could contaminate the egg. Refrigerated eggs should not be left out for more than two hours.
If that's the case, then why are eggs not stored in fridges at the supermarket? Well, there's a simple explanation for that. It's apparently because store temperatures are kept below 20ºC, so refrigeration is unnecessary. 'This also prevents significant temperature fluctuations.
Eggs must be kept clean, intact and fresh; stored at cool temperatures; and cooked well. Follow these practical tips to ensure that the eggs you sell stay safe: Do store eggs in their outer boxes at below 20 °C, until displayed for sale.
How Long Can Eggs Sit Out? According to the USDA, refrigerated eggs should not be left out for more than two hours.
Storing eggs at room temperature isn't advised in the United States because of Salmonella and other pathogens. When we asked Clark whether it's safe to keep store-bought eggs at room temperature in the U.S., her answer was a clear "no."
Many European countries, like the UK, vaccinate their hens to prevent the transmission of salmonella when the hens lay eggs. The vaccinations, in conjunction with the protection of the “cuticle,” are thought to protect the European eggs from bacteria, therefore they don't refrigerate their eggs.
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.
In Europe, farms vaccinate chickens against salmonella. That means the cuticle is still intact when eggs are sold. Refrigerating eggs with the cuticle intact could actually cause mildew to grow. Which could cause… you guessed it salmonella contamination.
Best practice is to store eggs in the fridge; that way the temperature is always at a constant and your eggs will be fresher!
Here's What Fresh Eggs Daily Tells Us:
And farmers have up to 30 days to go from when the egg is laid to the carton. That means those supermarket eggs can be two months old by the time you buy them.
The frequency of Salmonella-contaminated eggs in Australia is very low. Despite this, there is a potential risk of illness from consumption of raw or lightly-cooked eggs, or the consumption of uncooked foods containing raw egg.
Simply fill a bowl with cold tap water and place your eggs in it. If they sink to the bottom and lay flat on one side, they are fresh and good to eat. A bad egg will float because of the large air cell that forms at its base. Any floating eggs should be thrown out.
British authorities actually discourage refrigerating eggs on the theory that chilling and then warming could create condensation, which would allow salmonella to penetrate the shell.
Most people will still put them in the fridge at home, but because in Germany and most of Europe eggs are not washed and sterilized, unlike in the US and Canada, whereby the protective layer on the outside can be damaged, eggs don't HAVE to be refrigerated so the store sells them on the shelf.
Did you know that American eggs would be illegal in a British supermarket because they are washed and British eggs would be illegal in a US supermarket because they are unwashed? It is generally best to leave the egg unwashed.
Commercially sold eggs in America go through a washing and sanitizing process that clears contaminants, but also removes the natural protections that eggs have against bacteria. Because of this, eggs are refrigerated during processing and must remain chilled in order to reduce the risk of salmonella contamination.
And salmonella can spread quickly when eggs are left out at room temperature and not refrigerated. “A cold egg left out at room temperature can sweat, facilitating the movement of bacteria into the egg and increasing the growth of bacteria,” the USDA states on its website.
How to store fresh eggs. Once they're out of the coop and free of any of the feathers and poop that came with them, eggs should be refrigerated. Although unwashed eggs with cuticles intact can safely be stored at room temperature, refrigerating your eggs will help them last longer; about 5-6 weeks.
According to the FDA, eggs should be left at normal room temperature (68°F to 70°F) no more than two hours; or at higher temperatures no more than one hour.
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.
Should You Leave Butter on the Counter? According to the USDA, butter is safe at room temperature. But if it's left out for several days at room temperature, it can turn rancid causing off flavors. The USDA does not recommend leaving it out more than one to two days.
Is There a Salmonella Risk? The risk is low as Australia has strict food safety laws and strong state agencies with responsibility for regulating our food system. Egg farmers also do everything they can to supply safe, clean, and fresh eggs.
In Australia, US, Sweden and other countries where chickens are not vaccinated against salmonella, eggs must be cleaned to remove bacteria and dirt before sale. Egg refrigeration of between 5° - 15° is therefore encouraged to protect the egg.