What is the difference between the two bottles (normal and BPA free) in the Natural Feeding line?

Botol Avent ni ada dua jenis PES n PP.. Kt sini barangan AVENT so far semua BPA-free and PES n PP.. So ada yg bertanya apa beza dua ni?? Then ku study la sikit.. Arini (4 febuari 2011) jumpa ini kat website ni http://community.thenest.com/cs/ks/forums/thread/47699835.aspx

(in case ada yg xleh bukak kt Malaysia sy copy kt bawah ni)

What is the difference between the two bottles (normal and BPA free) in the Natural Feeding line?

Both bottles are BPA-free and are clinically proven to help prevent colic and reduce fussing at night.*

Polyethersulphone (PES) is an extremely durable material that has a natural honey-colored tint. Its high quality means that it is heat-resistant, stain-resistant and impact resistant. Bottles made of this material are highly durable. In addition the PES bottle has bottle has only a few parts and is therefore easy to clean.

Polypropylene (PP) is a more plyable material that has a milky hue. Philips AVENT bottles made of this material come with an additional adaptor ring to ensure the unique skirt on the nipple always fits the ring of the bottle, guaranteeing the anti-colic feature.

Nntai2 study lagi.. saya share kt sini ok :)

Ok, ni sy jumpe lagi.. rupa2 nya AVENT ni ada 3 jenis botol.. :)

http://www.support.philips.com/pageitems/master/pages/avent/en_US_avent-identify-bottle.html

harap membantu anda :)