My little guy went 4 weeks without feeding on f/t and I was soaking them in hot water to thaw them, the 1st dry one I offered he jumped right out of his hide for.

I pull out a frozen mouse out of the freezer in the morning before I leave for work, toss it on a plate and set the plate on top of his cage. By the time I get home it is thawed and he knows its there. I toss it in a zip lock and then dunk it in hot tap water for a few min to bring its temp up a bit. I haven't had an issue with him refusing a f/t since.