You could do any of the things that were just mentioned or you could try making some sort of extension/filter device of you dont mind looking like a complete fool and possibly loosing like 1/2 a % of THC. But yea, deff. dont freeze your piece if its glass, if its metal or wood throw that fucker in the freezer not that i think that will give any truly significant change to the smoke. make a bong if youre desperat for cool smoke. Peace