moldy soap

In the first image, you will see the inside of one of my curing rack attempts. I bought this veg rack cheaply at WalMart because it has wheels and can be positioned into one of many corners in the house. I used either 4-layer sheer material or double-layered bedsheet fabric to block out dust but...

I tested a PalmOlive formulation with freshly pureed aloe gel for all of the water. I did not include any other additives. After having left this sample in a cup inside of a loosely closing cardboard box for roughly 4.5 months, this is what I saw What are the little white things on the surface...