Egg sizes matter - sometimes.
When using EB eggs to scramble, poach, hard-cook, fry, or to use in an omelet, using any egg is OK and won't alter the result of your recipe. Same as if you were adding them as a component of a dish like a salad or on top of fresh pasta or a burger.
When using them in a quiche or frittata, using medium vs. jumbo would have a small effect on the volume of the dish.more
For baking recipes like cakes, pies, cookies, etc., recipes are calculated on using large eggs. Using a different size egg may alter the outcome of the recipe.
Use our egg size conversion chart to help you figure out the correct number of EB eggs needed for the kind you have on hand.