Oily residue is condensed vapor. Vapor condenses on anything cooler it contacts. Visible vapor in the air is actually condensation.
vapefiend Reviewed by vapefiend on . Oily residue collecting in arizer extreme? I am finding my medical weed tastes funny and oily residue collects on glass. Is it neem? Is it systemic? Also a ring on j's when burning. Could it be nutrients. Any answers will help me research. Rating: 5