I accidentally left an avocado on my wood block table. The avocado went bad and now there is a small spot that I think might be mold on my table. I'm not sure what else it would be. I have been sanding the table to try to get rid of it. I'm nervous about it spreading. I've sanded quite a bit but there is still some discoloration. Do I need to keep sanding until it's gone or is the discoloration a natural and harmless occurrence given what happened? The spot is rather light and a little smaller than a quarter. I have John Boos Mystery Oil for the table. Will that help prevent the spreading of any mold, etc?
Thanks in advance for your help!