I'm with Sueet and don't think you need any humidity packs for vacuum-sealed weed. But you should keep burping even after the jars reach 62% (not for long though if your room is 45%!). I don't want to seal my jars up for curing until they've been drying for a total of 3 weeks from chop. That's when I feel like the chlorophyll is burned off enough to seal.