I have had problems using rubbing alcohol on gold plate. If someone decides to use alcohol, dip it quickly and rinse fully.No need for anything drastic in cleaning it. Clean it like you would any kitchen utinsel knife that you prize. A little dish soap with a toothbrush and hot water, a dip in alcohol and presto your good to go. Scrubby bubbles work good to. Good luck.
Alcohol is not that great of a sterilizer agent. It is used on wounds and cuts because it is not damaging to live tissues.I have had problems using rubbing alcohol on gold plate. If someone decides to use alcohol, dip it quickly and rinse fully.
If you really want to set your mind at ease about organisms, grab some Lysol wipes and have at it a few times. Nothing will survive that.