i dont know if this true or not but i just want so share:
C2 Green Tea bottle- its not the tea that affecting you but the chemical releasing from the bottle. These plastic called polyethylene terephthalate or PET bottles contains a potentially carcinogenic element (cancer-causing chemical agents). Check on the bottom of the bottle, there is a triangle sign and number 1. Whatever number under 5 will release the chemical especially of C2. Since tea leaves brewed and hot filled into these plastic bottles.
No wonder the bottles are so thick. This is something we should be scrimping on.