Can I Use Copper Piping?

[Windy City]

I am rebuilding my home brewery and want to know if there is a problem with using copper for all the piping going between a three tank system.
I use milled out 1" triclamp ferrules and solder 3/4" copper pipe inside. I use these a lot and they work great. I have three 55 gal pots so everything is being built with clean in place.

 

[day_trippr]

I would not use extensive copper on a brew rig as it is a known catalyst wrt oxidative stress and copper ions are known to have a negative influence on beer flavor stability. I would also be concerned with (toxic) verdigris hiding inside the uninspectable tubing...

Cheers!

 

[MaxStout]

So-called lead-free fittings and valves do contain a few percent lead. Not so much a problem with water, but wort/beer at lower pH may leach some out. I wouldn't risk it.