I was wondering if it was okay to blow into my glass piece to empty a cashed bowl. Is it harmful to blow in it with your spit and bacteria going into the bowl and you and other people inhale that again, and does the humidity of your breath make resin wetter inide the bowl?
ive never thought about this before actually. cant count how many times ive blown out the cashed bowl, or my friends have, just not something we ever really thought about. yea itd blow bacteria back in, just clean the pipe a lot. if someone has a cold/flu and youre sharing a pipe could get sick either way whether the pipes been "blown back" into.
the flame when you light the bowl probably kills any bacteria that would be on it... at any rate, you should clean your bowl regularly