wash with salt water, i believe. edit: wait do any of you saying that it's a cheap gift know how hard it is to make one of those things? getting the top off is a dreadful task and it actually takes a good amount of time/strength/skill.
and i completely agree with you, if a friend of mine made me a vaporizer instead of something store bought, i would love it! and it's crafty
me to id love that as a present but id like it if he cleaned it real good dont want chemicals messing with my weed