Together, and with the help of a small bowl of water, let’s save millions of perfectly good eggs from being thrown away. Egg shells are very slightly porous. Over time, air seeps into the shell making it lighter than it was, and, when it is old and no longer good to eat, it floats. Hence, the egg float test.Carefully, place an egg into water taking care not to crack it, and watch. If the egg:…sinks to the bottom and sits on its side, then it’s fresh and good to eat.…sinks to the bottom but…