Last question before my Reflux is complete

[IhaveNoPoliticalOpinion]

Is there any such thing as to cool in the condenser head?
I am thinking about an external jacket on the valved reflux still's condenser head that would contain dry ice.

If it can be to cold I will have to adapt, In which case it would be the same design exept farther from copper with water being a cooled insulater in between


-----------------------------------------------------------
Another Still I am building
Unrelated I am building a custom copper setup(I mean no pipes to start with no boiler, hammering sheets and forge welding them) Its difficult but as soon as I am done I will post a pic

I am basically welding without the use of any solder whatsoever(requires High Temps)

I am also recording the process throughout on paper aswell as taking photo's. So if it isn't a piece of crud I will post a faq on how to make yer own boilers for about 50 bucks( I mean a 15 Gallon all copper boiler aswell as custom pipes though ya can just buy yer own)