I extracted about 72 lb/6 gal from two hives (28 shallow frames) last week. I threw the honey in a closed up space (stand-up shower with sealed door) with a dehumidifier for two days just to be sure everything got brought down to a low moisture content. I'd say about 3/4 of the frames were nearly 100 percent capped and the rest were mostly capped. I figured at that ratio, I'd be fine anyway but like the insurance of two days of dehydration.
I had 10 more frames that were not capped and I left those on top of my strongest hive.
This is my first year in southern WI so I do not know if this is typical.
Scott