This was an interesting happenstance..
So, I was really noticing the plastic taste of the water bottle near the end of the ride when it warms up and has sat in the bottle for an hour. It occurred to me that this problem may have been solved. It’s been 20 yr since I started really riding and we scrapped by, literally. But now, I can afford just about anything reasonable.
I asked someone at work and she mentioned 2 possibilities; Polar and Camelbak. Then I started wondering how I would solve this. A thin foil liner in a plastic bottle would be a good way to solve this. This is very easy to envision.
Today, I stopped at a bike shop after work and they happen to have Polar bottles. Bam, there’s my idea. Well, sort of. The outside of the bottle is transparent and you can see a layer of foil in there. The inside is still plastic, but I’m amazed that my idea and someone’s implementation lined up so well.
water bottle on REI