Gather a bright flashlight or egg candler and a dark room
Hold the egg gently between your fingers
Turn off the lights or move to a dark area
Place the light source against the larger end or side of the egg
Rotate the egg slowly while looking through the shell
Check for a visible air cell, veins, movement, or an embryo
Identify clear signs of freshness or development based on the stage
Return the egg to its place immediately after candling
Handle eggs carefully to avoid cracking them