In my experience, the poly (white) Nalgene bottles last +/- 5 years, depending on use & UV exposure. They develop a smell I find unpleasant, & then crack if flexed.

How often should you replace your Nalgene bottle?

“Plastic water bottles can start to break down after continued use and need to be replaced about once a year,” Leanne Stapf, chief operating officer at The Cleaning Authority, told POPSUGAR. “Glass bottles have a long shelf life, but can break easily, so they aren’t ideal for those with an active lifestyle.

Why are Nalgene bottles bad?

Although Bisphenol-A (BPA), the stuff in Nalgene’s classic polycarbonate shatterproof water bottles, has been used for nearly 50 years in products like baby bottles, water bottles and the lining of most metal food and beverage containers, some scientists found study results that suggest BPA could cause “potential

They’re durable, leak-proof, easy to carry, high capacity, wide-mouthed, graduated, abundant, customizable, and popular.