When I first built my keezer I had a mold issue about two months into it. I cleaned it all out really well and put everything back in and hoped for the best. I then read about DampRid in another thread I thought I would give it a try. Now six months later I am mold free and just poured about three cups of water that the damp rid collected. I don't open the lid that often and the keezer is inside of my apt w/ the ac on all summer and fall.