Handle and Store Your Hens' Eggs: Wash Less, Keep More

A dozen eggs from a well-kept backyard flock is a small victory. But the way you treat those eggs after they leave the nest decides how long they stay good and how safe they are to eat. Most of the confusion around egg storage comes down to one idea: the bloom.

If you have heard people argue about whether to refrigerate eggs or leave them out, the answer is not either/or. It depends mostly on whether the egg has been washed. Once you understand the bloom, the rest is simple.

What the Bloom Is and Why It Matters

Every egg a hen lays has a thin, barely visible coating over the shell called the bloom, or cuticle. It seals the shell's tiny pores. Those pores let air in as the egg ages, but they are also a way in for bacteria. The bloom keeps the inside drier and keeps surface bacteria from slipping through while the egg is fresh.

Think of the bloom as the egg's own lid. As long as it stays intact, the egg is well protected on its own. The moment you wash the egg, that lid comes off, and the egg becomes more delicate.

This is the whole reason store-bought eggs are refrigerated in the United States. Commercial eggs are washed before they are sold, which removes the bloom, so they have to stay cold. Your backyard eggs do not start with that handicap. That is something to use, not fight.

Wash Less, Not More

The simplest rule: if an egg is clean, do not wash it. Washing an egg you are about to store removes the bloom for no good reason and shortens its useful life.

That said, not every egg comes out clean. Hens track mud, and a nest can get messy. When an egg is seriously dirty, you do have to clean it. The skill is knowing when cleaning is worth it and doing it the safe way.

• Leave clean eggs alone until you are ready to use them.
• Wash only eggs that are visibly soiled with manure, mud, or nest litter.
• Collect eggs often so they spend less time sitting in the nests where they get dirty in the first place.

If you keep the nests clean and gather eggs once or twice a day, most eggs never need washing at all.

How to Clean a Dirty Egg the Right Way

When you do have to wash an egg, use the method that removes the mess without forcing bacteria through the shell.

• Use warm water. Warm water makes the inside of the egg expand slightly, which pushes outward through the shell and helps keep the shell's surface clean.
• Avoid cold water. Cold water can make the egg's contents shrink and pull surface dirt and bacteria inward through the pores, which is the opposite of what you want.
• Rub the shell with your fingers or a soft brush under running warm water until it is clean.
• Do not soak eggs. A long soak lets water and whatever is in it work its way through the shell.
• Do not use soap and bleach to wash eggs for eating. These can leave residue or damage the shell, and they are not necessary with warm water and friction.
• Dry the egg and use it, or refrigerate it if you are not using it right away. Any egg you wash should be treated as a refrigerated egg from then on, because its bloom is gone.

Washing removes the natural protection, so a washed egg should be used sooner and kept cold. This is not a failure on your part. It just means the clock moves faster.

How to Store Eggs So They Keep

Temperature and position matter more than the container.

• Keep unwashed eggs at a fairly steady temperature. They can sit on the counter for a couple of weeks if your kitchen is not hot, but a cool, even spot is better.
• Refrigerate eggs if you want them to last longer. Cold storage stretches an egg's life from weeks to a couple of months or more.
• Store eggs pointed end down. The air pocket sits at the blunt end, and keeping it up helps the yolk stay centered and the egg stay fresh longer.
• Avoid temperature swings. Moving eggs between a warm counter and a cold fridge, over and over, makes the contents expand and contract, which can pull air and bacteria in. Pick a home for them and leave them there.
• Store eggs in the carton, not in the door. The door of the fridge gets warmer every time it opens. The carton on a shelf protects the eggs and keeps them at a steadier temperature.
• Label the carton with the date you collected them. Two weeks from now you will not remember, and a date makes it easy to use the oldest first.

How Long Do Eggs Stay Good

Eggs do not go bad on a strict calendar, but the range is useful.

• Clean, unwashed eggs at room temperature: about two to three weeks, less in a warm kitchen.
• Refrigerated, whether washed or not: several weeks to a couple of months. Wash them right before use, not before storage, to get the longest life.
• As eggs age, the white thins and the yolk flattens, but an older egg is still fine to scramble or bake with.

Two quick checks tell you whether an egg is still worth cracking.

• The float test. Put the egg in a bowl of water. A fresh egg lies flat on the bottom. As it ages, the air pocket grows and one end tilts up. An egg that stands on end or floats has a large air pocket and is getting old. Floating does not always mean bad, but an egg that bobs or floats high deserves suspicion and can be discarded rather than risk it.
• The smell test. Crack the egg into a clean bowl and give it a sniff. A bad egg has a clear, sulfur smell you cannot miss. If it smells off, do not use it.

Trust the smell test above all else. An egg that smells fine and looks normal is almost always fine to eat, even if it is older than you expected.

When to Throw an Egg Out

A handful of eggs should never make it to the pan.

• Cracked shells. A crack is a doorway for bacteria. If the shell is damaged, use the egg right away and cook it well, or discard it.
• Manure that will not come clean. If an egg is so covered that cleaning will not fix it, throw it out rather than risk it.
• An off smell or off color when cracked. Better in the compost than on your plate.
• Eggs from a sick or badly stressed bird. If a hen is unwell, do not eat her eggs and do not give them away. Handle the flock's health first.

When in doubt, let it go. One honest egg dropped in the compost costs little, and it is not worth a bad meal or worse.

A Few Everyday Habits

The best egg storage starts before the egg is even collected.

• Gather eggs once a day, or twice on hot days, so they do not linger in the nests.
• Keep nesting material clean and refresh it when it gets soiled. Clean nests mean clean eggs.
• Build a simple collecting routine: gather, sort, store oldest first. It saves time later.
• If your hens free-range and hide eggs, check the usual corners so you are not finding a week-old surprise.
• Give very fresh eggs as gifts or trade them with neighbors through CommunityTable, and keep the older ones for your own cooking.

Eggs keep best when they go from a clean nest to a steady temperature with the bloom intact. That is the whole secret. Collect them, protect them, and you will have plenty to eat, share, and trade long after the hens slow down for the season.

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— C. Steward 🥚