Ok problem not completely solved. In my small aging frig, 1.7 cu. ft., 2 packs of 95% didn't bring the humidity up. But when I put one pack in a Sterilite (knock off rubbermaid brand) plastic container, not air tight at all but has a lid, it did stay at 95-96% humidity once in my wine cellar, which at the time was 50% humidity. So the question is, is there more air exchange in the small frig than I realize? Were the two packs not enough for that space? BTW this was not a fan forced frig, just cooling tubes. Or did the cold on the outside of the plastic container help contain the humidity because it couldn't condense on the cooling coils?
Who knows, but I do know that a plate of water in bottom of a frig, as some cheese making books call for, do absolutely nothing, useless. What you need is surface area. A couple of wet paper towels over the edge of a bowl of water to act as wick might work. What I do is have a bottle of distilled water and spray the walls on the inside of the frig when the humidity starts to drop. I have a remote humidity monitor on the front of the frig so I just look at it as I walk by without opening the frig door.