My experience of Stainless Steel comes from 30 years ago and in those days it was Pure. In England it was Sheffield Steel and in France it was Solingen. I have recently bought some new Cutlery and it was S/S and it was cheap. It does not fit the quality That I used to know. Like you- It now has a metalic taste to it. No idea where it was made though.
And as to Metal water bottles, I have a problem with them as I cannot suck hard enough on them to overcome the vacuum that sets up- and sqeezing them distorts the bottle. I have a couple of "Thermos" Aluminium bottles for hot drinks in the winter and they never get used-. Far more convenient to find a Cafe or carry a hip flask for the " Warming Drink" (Cognac tastes better aswell)
__________________
How long was I in the army? Five foot seven.
Spike Milligan