The metal your liquid is sealed in will definitely have a bearing on the taste. Sometimes it is good and sometimes it is bad.
When we lived on a farm we had an artesian well. My mother always had a bucket of fresh water on the boards along the edge of our back porch. There was always an aluminum dipper in the bucket. That fresh water out of that dipper always had a pleasant taste.
On the other hand we had always drank coke from a bottle until the put it in cans. The bottles always had a smoother taste that the cans. The cans tasted like metal to me.
Coke out of a can sucks.
Pepsi is tolerable, if ice cold. But Coke....no way