Finally, somebody gets it right! Tacodude, you are correct.
It is highly unlikely to be moisture. Dihydrogen Monoxide does not create such aural entertainment upon heat application. Sure, a moist bud can sizzle but given OP's description, I can comfortably say it's not moisture.
Spider mite eggs: I can happily say you are not hearing spider-mite eggs crackling! I have grown outdoors btw...I have seen these. Sure, you might be smoking some but it's not causing the sizzle (and it isnt anything to worry about either).
It's essentially a poor/non-existent flush of the nutrients that it's been fed with. In particular, the phosphorous is what's likely being burned. Did you never do those experiments in school?
Feed with inorganic ferts and you'll need to flush at least 1 week prior to harvest (there is debate on this, and as a professional gardener I have my opinions, however I am not saying anything with particular indignation - see what works best for you. It will vary). If you don't flush, you are still smoking those nasty chemicals in great quantity depending on how ruthless a grower you are/know.
Feed with organic ferts (Fish, Blood and Bone, Manure, Bone Meal, Bat Guano etc) and you can feed all the way to harvest if you so wish. You will not experience the sizzle
Unfortunately if you have already purchased the green that sizzles, there is very little you can do. Perhaps you could indeed do a water-cure, if it really puts you off?
I personally wouldn't be too precious about it if it's a once in a blue-moon kinda thing.
