lenny flank
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The cheap bottles are usually made from LDPE. They are usually the ones that have a "plastic" taste. That is not caused by the LDPE itself--it is from leftover impurities from the manufacturing process, which is why the plasticky smell and taste goes away over time (and it can be washed out with vinegar or alcohol).Spaceman Spiff said:You guys are being too imprecise. There are at lease five different types of plastic used as liquid food containers: #1 PET, #2 HDPE, #3 PVC, #4 LDPE, #5 PP.
LDPE can itself break down over time if exposed to sunlight and high temps, giving the water a "plasticky" taste. But the amount released is miniscule (parts per billion) and it is nontoxic and harmless to people.
As for BPA (which is usually what people are afraid of in water bottles) that has been studied to death,m and the science is settled long ago. The amount of BPA that can be released over time is miniscule and it has no measurable health effect on people.