The instruments should come out completely dry, whether in wrappers or loose on a tray. If any moisture is left in the pack, or on the instruments, it will result in tiny water droplets on the instrument surface, which will leave a circular stain after drying. The color of this stain will depend on the pH, as well as the mineral or metal contents of the water. If the drying cycle works perfectly, however, there is a much less chance for deposits to form on the surface of the instrument. Stains due to metal deposits or plating stains are always near the most magnetic parts of the instrument.
New instruments are often highly magnetic in the locks, the serrations and ratchets.
This happens because the carbon steel tools used to work on the instruments during production are very magnetic themselves. This magnetism wears off gradually during handling and sterilization. This is the reason why newer instruments tend to stain more visibly. Yes, our stain remover is supplied as a 3oz. Apply remover with damp cloth or sponge and polish gently, then rinse instruments thoroughly with lukewarm water.