Since changing our packaging from glass jars to BPA-free plastic jars we have had many inquiries about the plastic we use. Our jars are recyclable and BPA-free! The jar lids and the inner linings of the jars are #5 PP (Polypropylene) and the outer body of the jars are #6 PS (Polystyrene). It indicates Recycle #7 (other) on the bottom of our jars as there are different (mixed) plastics (Polypropylene & Polystyrene) which make up the whole unit. Evaluating how safe and green a product is can be a daunting task. We try to look at the entire lifecycle of the product when sourcing materials. Is foreign glass healthier than domestic plastic? More ethical? More environmentally friendly? Once you consider all the traveling it has to do to get from its source to your home, how the glass is manufactured, the environmental impact and the human cost in terms of labour practices, conditions and policies of the source countries, it isn't so evident that glass is a "better" solution than plastic. Here is an interesting read for those seeking more info about BPA in plastic.... 
Why it Won’t Kill You: Bisphenol A (BPA) and the defamed plastic bottles
Everything in moderation, that’s the healthy mantra to live by, right? Too much of anything isn’t good for you. Jamba Juice is one of the greatest wonders of the planet, but drinking 1,000 Strawberry Surf Rider smoothies a day might cause some issues. The same can be said about BPA. It isn’t the big, bad monster it’s made out to be. If you’re living a well moderated life BPA won’t kill you. LINK TO ARTICLE >>