Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Very Poor "Stainless" Quality

"Stainless steel" is something of a catch-all term, and there are many qualities of stainless out there. This bottle is clearly made out of the cheaper variety. To be called "stainless," it must contain a minimum of 10% chromium, but beyond that who knows what this bottle is made from. Despite repeat washings, it imparts a strong metallic taste to the water which I associate with cheap aluminum, and I have never had that experience with any other food-grade stainless product. The bottle is thin-walled and cheap, too tall, and it comes with no imprint as to the quality or type of stainless steel. I have to question if it is even food-grade. Save your money.