Which plastic water bottles to avoid

To summarize what we've been hearing so far.... avoid using water bottles with numbers 3, 6 and 7. 1 is for one time use only (most water bottles are 1, so don't refill the bottle). Use glass if possible and stainless steel. Do not microwave plastics, use glass or pyrex for reheating your food. For more information, visit IATP.org and Green Guide