Powdered eggs facts for kids

A powdered egg is simply an egg that has had all its water removed, making it completely dry. Most powdered eggs are made using a special process called spray drying, which is similar to how powdered milk is created.

First, fresh eggs are carefully cracked and separated from their shells. The egg yolk and white are then mixed together. This liquid egg mixture is sprayed into tiny droplets through a special nozzle. These droplets enter a column of hot air. The hot air quickly evaporates the moisture from the droplets without actually cooking the egg. A swirling flow of air helps to separate the solid egg particles, which then fall to the bottom of the drying tower to be collected.

Powdered eggs offer several great benefits compared to fresh eggs. They take up much less space because they are so light and compact. They also last a very long time without going bad, and you don't need to keep them in a refrigerator. You can use powdered eggs directly in baking recipes without adding water. For dishes like scrambled eggs or omelettes, you just need to mix them with water first.

Pure dried whole eggs from the U.S., 1940s

A Look Back: The History of Powdered Eggs

LaMont's Crystallized Eggs 1898 ad in Seattle, Washington

Advertisements for dried eggs started appearing in the United States in the late 1890s. People cooking outdoors, like campers, were using powdered eggs as a common food item as early as 1912.

Powdered Eggs During Wartime

Powdered eggs, also known as dried eggs, became very important in the United Kingdom during World War II. During this time, many foods, including fresh eggs, were rationed, meaning people could only buy a limited amount. Powdered eggs helped make sure everyone had enough to eat.

While they were nutritious, some people didn't enjoy the taste as much as fresh eggs. Famous TV presenter Esther Rantzen once said she could still remember the "disgusting taste of powdered egg" from that time. Powdered eggs were also a common part of military meals for soldiers. The comedian Bob Hope even joked about them during a show for soldiers, saying, "Fellows, the folks at home are having a terrible time about eggs. They can't get any powdered eggs at all. They've got to use the old-fashioned kind you break open!"

Keeping Eggs Fresh: Quality and Storage

Powdered eggs can last a very long time, usually between 5 to 10 years, if they are stored in a cool place without oxygen. This long shelf life makes them a great emergency food or a convenient ingredient to keep on hand.

Are Powdered Eggs Nutritious?

A study in 2022 found that the spray-drying process mostly keeps the high nutritional value of regular eggs. This means powdered eggs are still a good source of important nutrients, just like fresh eggs. The process does not create harmful compounds.

Baking with Powdered Eggs

Many types of cakes get their light, fluffy texture from air trapped in beaten eggs. This is mostly thanks to the proteins in egg whites. When eggs are dried with heat, it can sometimes make it harder for them to create foam when mixed with water again.

However, powdered eggs that have less yolk and a small amount of a special ingredient called sodium lauryl sulfate can still create foam that is just as light as fresh whole eggs. This is because egg yolks and other oils can reduce how well egg mixtures can foam.

Making Things Foamy: Egg Whites

If you dry only egg whites, they can be even better for making foam. This product is called egg white powder. When egg whites are dried using a method called freeze-drying, they keep much more of their foaming power compared to regular spray-drying. Using a lower temperature during spray-drying also helps to keep the foaming power strong.

Other Egg Products in Powder Form

You can also find powdered egg whites sold separately. The ingredient known as egg white protein is almost the same as egg white powder. This is because no extra steps are taken to separate the protein from other parts of the egg white before drying. Sometimes, a tiny bit of egg yolk can accidentally get into dried egg white products, which can reduce their ability to foam. Adding a special enzyme called phospholipase A2 can help fix this problem and bring back the foaming power.

See also

• Food powder
• List of dried foods