the problem with rice, descants, bovida packs etc, is they won't de-humidify the unit quickly enough, works for jars etc... They can also absorb odors, which I want my plants to retain their full aroma!I rather put a-grade buds in plastic bags and let the upper part of bag open in fridge wine. It condensate lil bit of water at bottom of bag but I shake the bag once every 4-5 days. No problem so far, dimension with buds in bag are around 10x15x15cm.
I dont like to use food grade paper bags, it dries faster and smell weird.
Didnt also do some special tweaks to fridge with additional fans. I think it wokld dry faster too, which u dont want. U wanna cure this way minimum 2 weeks.
If u have problem with humidity, perhaps add rice, which will absorb a lot.