Believe it or not, the guys over at About.com show you the “right way” to crack on egg by cracking it on a flat surface instead of edge of a bowl like how I do it.
It’s interesting to note that some people probably don’t know even how to do that yet.
Don’t worry, if worse comes to worse, use my method is to crack the whole egg and use the shell too like Nick Vujicic, I am sure shell has some great protein.
But in short, it’s best to crack an egg on a flat surface like a cutting board, not on the edge of a bowl. Why? Because cracking an egg on the edge of a bowl can drive any bacteria or other contaminants on the shell’s surface into the egg itself. Cracking an egg on a flat surface is less likely to do that.