Re: Wax moths
I've never had an issue with wax moths contaminating honey. I suppose if you have the larvae working brood comb right next to stored honey it might be an issue but the presence of larvae (usually tucked up between split bottom bars or especially under the top bars where they rest in the boxes) has never concerned me. With regards to the dead out honey, I have had "off" honey after it sat for a while. Same as you...planning on feeding it to a colony. With regards to fermentation, I've found that fermenting or fermented honey has a sharp taste to it. Double check to see if you think it's fermented or just a particular taste that you're not accustomed to. I always feed back old honey, especially if I think it's fermented, to the bee's.
"My wife always wanted girls. Just not thousands and thousands of them......"