For sake of the question:
- I'm using a Sodastream brand
- I like max carbonation
- Normally, I use cold water from my Brita pitcher out of the refrigerator
Sodastream's FAQ states:
However, we do recommend using COLD water to achieve best results.
I suspect that best results means max carbonation, and I should use cold water. Or a conspiracy theorist could suggest their lawyers promote cold water so fewer machines will blow up. Or maybe it has something to do with flavor..
Anyway, just curious about this. I don't have the physics pedigree to know the answer.