plastics come in like numbers u can find the numbers on the bottom or somewhere on the label. sometimes u may not find it...
number 2 is the safest for storing foods and stuff and 1 is used in water bottles. however if ure really concerned abt plastics leaching harmful stuff on ur water id suggest not using plastic bottles over and over again cause i remember reading abt plastic bottles leaching chemicals over time and temp. so ur best bet would be to use no:1 or 2 plastic bottles and remember to get new ones every once in a while
i think it would be safer just to use aluminium bottles instead
You can get "plastic" bottles which are actually made from plant starch rather than oil. Or the aluminium ones are a good option
i think that it would be safer to get the BPA free water bottles from your local store.. like walmart, target or kmart!!!