Hey, I'm looking to move my brewing setup to the garage, so I'd rather not bring my 5 gallon boils back in the house to chill in the sink. I'm looking at wort chillers, and I'm wondering about the materials used to make them. How does stainless steel compare to copper? I assume copper is better than stainless (more people seem to use them), but why?
Edit: Looking at immersion, not counterflow.