Okay, I had not done any cleaning since I got the cave about 6 months ago.... I did wipe up excess water than has collected. So I should not have been surprised to see the molds growing, but yeeuch! Emptied out all 35# of cheese, and set to work with Trader Joe's version of Simple Green and some elbow grease, trying to get into all the nooks and crannies. Looks much better afterward! I promise to keep more on top of it!