I am so excited to have found a non-leaching, safe sippy cup made by Klean Kanteen, the stainless steel alternative to plastic. Klean Kanteen makes the best stainless steel water bottles. They are odor free and do not taste like metal. We have tried other stainless steel bottles that smell horribly and are lined with epoxy. Plastic/polycarbonate bottles leach bisphenol-A (BPA), a chemical that mimics the hormone estrogen, and can cause chromosonal abnormalities. An article a friend gave me stated that baby bottles are made of the worst kind of plastic, as well as the Nalgene bottles I have used for decades. Any Klean Kanteen bottle can be turned into a sippy cup by buying the adaptor and spouts. Of course the Klean Kanteen sippy cup costs more than plastic versions, but the cost is small when you consider the benefit to your child's health. Besides, as my daughter said, now my son is the coolest kid in preschool with his shiny Klean Kanteen sippy cup.
Here are a couple links to articles discussing the dangers of plastic food and beverage containers:
Hazards of Hydration (Sierra Club)
Bottle Racket (Grist)
The only drawback to the Klean Kanteen sippy cup is it is made in China. The company states it is "responsibly made in China", but for a few of my friends boycotting Chinese products, this may be a tough decision. I have pledged to boycott Chinese products due to their human rights violations (especially in regards to Tibet), however I have found it almost impossible to completely avoid Chinese products. Even Melissa and Doug toys are made in China! Since signing the pledge to boycott Chinese products, I have become more aware of where the products I buy are made. On many occassions, I have decided not to buy something because it was made in China; however, the Klean Kanteen sippy cup offers the only alternative to plastic sippy cups I have found. Thus, I decided to violate my pledge by purchasing this safe, sippy cup. For more information on boycotting China, please visit Access to Awareness.