Powdered eggs are not essential to a good food storage program. You can bake breads, cookies, cakes, and other desserts without eggs; make burgers and meat patties; and have wholesome filling breakfasts without eggs.
Despite claims by food storage companies that powdered eggs have a shelf life of 5 to 10 years, research at Brigham Young University indicates a shelf life of one year.1 That short shelf life necessitates rotation and use of powdered eggs on a regular basis. Four well known websites2 sell powdered eggs in #10 cans or similar sized pouches for a range of prices that, when converted to price per dozen, are $4.27/dozen to $9.67/dozen before shipping. Fresh eggs range in price well below those prices in most areas of the mainland United States. Grocery store prices are well under $2.00/dozen with most under $1.50/dozen. Only farm fresh or organic eggs can compare in price and most of those are less or at the low end of the price range.
Conclusion: It is expensive to store and rotate powdered eggs unless you normally purchase farm fresh or organic eggs and even those will probably be less.
Solution: Learn to bake and cook without eggs so that eggs are not a necessary part of your diet should they become unavailable. It’s easy, the results are great, and you can still eat a variety of foods (including brownies!) without storing powdered eggs. Get the free digital cookbook Without Eggs by clicking here.
1Research on long-term storage of food by Dean Eliason and Michelle Lloyd, Department of Nutrition, Dietetics, and Food Science at Brigham Young University.
2Emergency Essentials, Honeyville, Walmart, and Amazon as of May 2020. When comparing brands of powdered eggs, you will find that egg counts per package can differ. Many base the egg count/per can or pouch on large eggs which are 12 to 13 grams per egg. Some brands have a smaller weight per egg which means the eggs are smaller. Also, compare package weight and not volume. Not all packages/cans are full. Recipes assume you are using large eggs so you may need to adjust accordingly. A conversion chart can be found here.