Just purchased this 15 cu ft freezer on Craigs List for $40. Thought it was a heck of a deal. It has a few small rust areas on the interior (see pic). What would you best recommend at treating? Or does it even look bad enough to require treatment? I've read about this Damp Dry stuff but not quite sure how it works.
I will be using this a fermentation chamber for mostly ales, then progressing to lagers at a later date.