I have some Maple from earlier this year that was great when I turned fresh after cutting but in a short time the blanks developed a serious mold issue in storage. It was cut in the summer so very wet. I turned a few pieces with the mold stains still visible and just didn't like the look. The dark areas don't add character to me and just look "dirty" and stained after I put the oil finish on. Decided to try some shower mold remover (Tylex) and after a few treatments and some time in the open air it seems to have cleaned it up. I did lose some of the spalting lines but will know more when it's ready for sanding in a few weeks. I thought about soaking it in a water/bleach solution but wasn't sure how it would impact the bark. I soak my pieces in an LDD/water solution sometimes so maybe that with some bleach will work as well. I've attached a before and after picture. I know, even the after picture isn't much re character and color so nothing to get too excited about.