05-28-2006, 04:05 PM
[quote what4] In various parts of the world, people drink groundwater that was deposited tens, hundreds or thousands of years earlier. So there is nothing about water itself that goes stale.
Some plastic containers, however, seem to leach chemicals into the water, and over time these can get intense.
Polycarbonate does not leach any flavors into the water. That is one reason why they are used in Nalgene bottles. PC is also very impact resistant.
Polyethylene(PE) however, which is used in milk jugs does leach monomers into the contents, but usually only when it is exposed to high temps or UV radiation (sunlight). The same holds true for Polybutylene Terephthalate (PBT) and Polyethylene Terephthalate(PET), but less so than just Polyethylene.
Some plastic containers, however, seem to leach chemicals into the water, and over time these can get intense.
Polycarbonate does not leach any flavors into the water. That is one reason why they are used in Nalgene bottles. PC is also very impact resistant.
Polyethylene(PE) however, which is used in milk jugs does leach monomers into the contents, but usually only when it is exposed to high temps or UV radiation (sunlight). The same holds true for Polybutylene Terephthalate (PBT) and Polyethylene Terephthalate(PET), but less so than just Polyethylene.