Liquid eggs are egg whites with yellow food coloring.
4 eggs
That is about 2 egg whites
You would use 4 medium egg whites or 5 small egg whites.
Egg whites are the clear liquid within an egg. Think of the contents of an egg being of two different substances....the yolk (yellow part) and egg whites (the clear parts).
Egg whites can turn from a liquid to a solid when boiled. The proteins in the egg whites denature and coagulate when heated, resulting in the transformation from liquid to solid.
One large egg white = 1 fluid oz., or 2 tablespoons. 2 large egg whites = 1/4 cup 4 large egg whites = 1/2 cup These are approximations, of course, depending on the size of the egg, but they come close enough. Handy for those who use "all whites" that come in a milk carton, which for some reason doesn't include this information.
Wine is to cask as egg is to carton.
4 medium egg whites equal 2 extra large
8 egg whites.....Standard size which is funny in and of itself
1 egg white = 2 tbsp Liquid egg whites(source: http://www.eggbeaters.com/recipes/faq.jsp#howToSubstitute)
One egg white is 20 calories, so 10 egg whites is 200 calories.