癮科學：聚合物與食物安全 - Engadget 癮科技
所以簡單來說，下次買塑膠容器，記得找到塑膠分類回收標誌看一下。如果是「２」、「４」、「５」的話是安全的，「１」最好不要用超過一次，「３」、「６」是危險的，而「７」則要看情況而定。
How Safe Is Tupperware? | Popular Science
Beyond BPA, other chemicals can be found in various food storage containers. Containers made out of polyethylene terephthalate (PET or PETE, or plastic #1)—such as most soda bottles—are OK to use once, but can leach carcinogenic, hormone-disrupting phthalates when used over and over again. Also, many deli items come wrapped in plastic made from polyvinyl chloride (PVC, or plastic #3), which can leach cancer-causing dioxins. Swapping foods out of such wraps once the groceries are at home is advisable.
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