Inside of TT covered in mildew

I'm sorry to hear about your mold issue. Bleach works for mold removal if applied properly, but likely would cause considerable damage. Try Microban. A gallon will cost less that $35. It's used by hospitals and other environments for mold and odor control, and is safe for many surfaces that would be damaged by bleach.

I have used dessicant canisters before, and use several during winter storage. In addition to using fans as recommended above, I would use dessicants or a dehumidifier for a while.