Its just moisture coming out. Smelling them should tell you if they are fine. I don't believe anyone has a tougher time drying/curing than me. Its hot and humid all year round. I use an AC to dry about 5 days then jar cos AC bill is no joke! Even after jarring, I have to burp them in an AC room with dry mode. I am slowly removing more AC time in drying stage as I become more confident and im liking it so far. My buds gets up to almost 30C even in closets at hottest hours. With drastic changes in temps/RH, you get these burps and its normal. Nothing to worry about if they smell good. Just let it out and continue.
The small hygrometers are a must imo if your conditions are quite humid.
The small hygrometers are a must imo if your conditions are quite humid.