Egg wash powder is suitable for both hand or machine washing of soiled eggs. Does not destroy cuticle. For hand washing simply mix a bowl of the solution according to the instructions using warm water. Gently agitate the eggs and rub off any stubborn dirty. We suggest not having the eggs immersed for longer than 5 minutes. Take the eggs out of the water and allow to air dry. Wiping the eggs dry will remove the protective residue that is intended to be left on the shell.