Wine cooler humidity issues

[quantim0]

I got a wine cooler to expand my collection into about a month ago. I got 3 lbs of 65% Heartfelt beads. I put 2.5 lbs in the cooler in 5, 1/2 lb bags. One is kept dry at the bottom to collect any condensation from the fan since I plugged the drain. I misted them with distilled water so about 60-70% are clear, and I have had nothing but problems.

The cooler will hold fine a 65% for a few days, then rocket up overnight to 75%. This happened last night. I noticed the humidity had dropped to 60%, so I misted the beads around 6 and it returned to 65% until I went to sleep at 11ish. Woke up this morning at 8 and saw the humidity was at 75%. The only solution I had at that point was to throw in my last 1/2 lb of beads that were dry. So the humidity has dropped to 72% in the last 2 hours. But I don't know how long it will take the dry beads to lower the humidity.

I'm already having issues with wrappers cracking, luckily only on box of ITC 10th Annys and not on my good stuff yet, but if these 10% swings keep continuing, I feel it's only a matter of time until all the other sticks become affected.

Is this a situation where I will have to keep a large amount of dry beads in the cooler to keep the swings to a minimum? I live in Fl and it's pretty humid down here, depending on how much my A/C is running, my house fluctuates from 65%-75% humidity, which is exactly what the cooler fluctuates. I have a feeling that's the source of my problem.

Thanks for your thoughts.