What’s the best way to clean dirty eggs? Should they be washed when you first gather them, or is it better to wait and wash them just before use? Before we answer these questions, let’s go over some basics.
Bloom Protects the Contents
A nearly invisible waxy substance called “bloom,” or “cuticle,” covers the surface of each freshly laid egg. Egg shells are porous, each shell having thousands of tiny pores. Bloom seals up those pores, allowing the egg to breathe, which is important for eggs that are going to be hatched. Bloom also seals out contaminants and bacteria.
Washing an egg in water removes the bloom, which is the egg’s best defense against contamination. If you plan to use the eggs right away, washing them first is a good idea. But if you plan to store eggs for a few days and if they’re not excessively dirty, then it would be best to delay washing with water until just before you plan to use them.
Prevention Is Best Cure
The best way to have clean chicken eggs is to prevent them from getting dirty in the first place. That’s not always possible, but in another article, we give some tips on how to keep eggs clean.
“Dry Clean” the Eggs if Possible
For eggs that have only a little dirt or manure on the surface and that aren’t deeply soiled, you may be able to clean them without water by using a little sandpaper. 320 grit will work well. (Higher numbered grits, being smoother, tend to be harder to get the egg clean with, and lower numbered grits, being coarser, tend to be too aggressive and can easily scratch away the bloom.)
By gently sanding any dirty spots on the egg, you can remove dirt while leaving the bloom mostly intact.
Washing Your Eggs
Some eggs, however, are too dirty to “dry clean” with sandpaper. For those, you’ll need water and/or detergent. When washing eggs, it’s best to use water that is 10-20 degrees (F) warmer than the egg. The reason for this is that each egg contains a small air cell. When air is cooled, it shrinks, so if you were to wash the egg in water that’s colder than the egg, the air cell would start to shrink. As it shrank, it would create a bit of a vacuum inside the egg shell, and this vacuum could actually pull contaminants through the pores and into the egg.
Warm water reverses this, causing the air cell to expand, thus creating slight pressure inside the egg that helps to keep contaminants out.
For washing eggs, we offer several different products:
- Egg Wipes — These are soft, biodegradable wet wipes made for cleaning eggs. Just pull an egg wipe out of the container and thoroughly wipe down the eggs. Each wipe is good for cleaning about a dozen eggs, depending on how dirty they are.
- Egg Soap Concentrate — This is a concentrated powder that makes a chlorinated egg washing solution.
- All Natural Egg Cleanser — This all natural, chlorine-free, concentrated cleanser removes dirt, manure and unwanted bacteria from the eggs. One bottle of concentrate makes more than 60 gallons of wash water.
- Egg Washing Kit — If you’ve got a lot of eggs to wash, this egg washing kit will save you lots of time. It works together with an air compressor and can wash about 8 dozen eggs in 15 minutes or less.
Eggs Not to Eat
If you find an egg with a broken eggshell, it’s best to avoid using it for human consumption, since the crack can let in contaminants. If you have a dog or cat, you can cook up the egg and feed it to them instead. I would also recommend that you not eat eggs that have become so deeply soiled that the shell remains discolored even after the eggs have been washed thoroughly.
Other Tips on Cleaning Eggs
Do you have other tips on how to clean eggs? Or favorite approaches? Post a reply in the comments below this article.