Eggs, we all eat them, and they are used in thousands of food products, but how much do you really know about the “Incredible Edible Egg”. For a while eggs had a bad rap, being high in cholesterol, and saturated fat. All the while all the positives an egg had to offer was lost. Do you know the difference between Grade AA and Grade A eggs? How about the difference between brown eggs and white eggs?
Eggs are an excellent source of protein and can be used to meet your protein needs. A large egg contains 6 grams of protein, 4.5 grams of fat (1.5 of which is saturated fat), and 213 milligrams of cholesterol, 22 percent less than previously thought based on a 1989 study. A large egg contains 80 calories each. Egg whites are basically pure protein. One large egg white contains 17 calories, 4 grams of protein, 0 fat, 0 cholesterol and 55 milligrams of sodium. When large eggs cost $1.90 a dozen, they are only $1.26 per pound.
Eggs are used to bind ingredients in meatloaves and croquettes. They can also leaven such baked high rises as soufflés and sponge cakes. Their thickening ability is seen in custards and sauces. They emulsify mayonnaise, salad dressings and Hollandaise sauce and are frequently used to coat or glaze breads and cookies. They clarify soups. In boiled candies and frostings, they hinder crystallization. As a finishing touch, they can be hard cooked and used as a garnish.
You may not have known but the USDA has a grading system for eggs. Grade AA is when the shell is clean, normal-shaped and unbroken. In addition when first broken, the eggs spread remains compact; has a clear, thick egg white, and a firm, centered yolk. Grade A eggs are almost the same. the shell is clean, normal-shaped and unbroken. However, when first broken, the egg spreads slightly; has a clear, reasonably firm egg white and fairly high yolk. Last, Grade B eggs the shells may be slightly stained and/or misshapen. When first broken the egg spreads over a wide area; has a clear, watery egg white and an enlarged, flattened yolk.
Egg Trivia
• A hen requires 24 to 26 hours to produce an egg. Thirty minutes later, she starts all over again.
• The egg shell may have as many as 17,000 tiny pores over its surface. Through them, the egg can absorb flavors and odors. Storing them in their cartons helps keep them fresh.
• Eggs age more in one day at room temperature than in one week in the refrigerator.
• About 240 million laying hens produce approximately 5.5 billion dozen eggs per year in the United States.
• White shelled eggs are produced by hens with white feathers and white ear lobes. Brown shelled eggs are produced by hens with red feathers and red ear lobes.
• Egg yolks are one of the few foods that naturally contain Vitamin D.
Did you know egg substitutes are made from real eggs? Using only the egg whites; vitamins, and other nutrients are then added that to make up for the nutrients that are lost when the yolk is removed. By eliminating the yolk, all of the fat and cholesterol and more than half of the calories are cut out. Egg substitutes are colored with beta carotene to make them yellow. In addition egg substitutes have a shelf life of up to 90 days from the time they leave the production line. With proper refrigeration, egg substitutes must be used within seven days of opening. The product can be frozen if unopened. Do not freeze part of an opened package. Also, once the product has been thawed, do not refreeze.
From scrambled eggs, meatloaf, and baked goods, the egg is one of the most diverse foods. So the next time you reach in your refrigerator for an egg, think of the hen and the many hours she spent to make this amazing all-in-one food.
Cook Smart…
Chef Dave Fouts
Resources
Iowa Egg Council
Incredible Edible Egg