Avent bottles - confused!

[ZoMo]

Hi,

Can anyone enlighten me please...

I have been using a mixture of 9oz Tommee Tippee and Avent bottles. I decided to go exclusively Avent as the TT ones are rubbish. Now, my original Avent bottles are the 9oz ones with the anti-colic ring you have to also insert. I have bought some online which looked the same but actually turned out to be Avent 'Advanced' bottles which have no ring but claim that the teat flexes with the baby sucking to release the air back into the bottle.

Having looked at the bottle adaptors / necks and teats from both sets of bottles (both are size 2 slow flow), they all look completely identical and so I cant see why I need an 'anti colic' ring in one bottle and not the other?

I dont know if there will be a problem if I now get the new and old bottle teats and necks mixed up in the washing up as visually I cant see any difference between them?

Can anyone shed any light on this please?!

Thanks x

 

[ZoMo]

Oh I may have just answered my own question, I have just realised that the older bottles have a shorter neck on the actual bottle and need the adaptor ring to make it longer to fit the screw top on properly.

I was so busy looking at the tops, I hadnt looked at the actual bottles!

 

[dizz]

This one caused me some headscratching. The colour-tinted bottles are a slightly different design so don't need the colic ring - but can use the same teats and white screw top bits.

And no, it makes bog-all difference if you chuck 'em in the steriliser together... but yep it took me at least 30 minutes to figure it out when we bought a couple of the yellow-tint bottles.

 

[rebeccalouise]

so glad you asked this & got some answers, I've had the exact same problem! x

 

[ZoMo]

Thankyou ladies! 30 mins was pretty good, think I was examining them for about an hour before it clicked that I should look at the actual bottle!

 

[Kage76]

LOL forget to put the anti colic ring on and shake up your formula and you will know why you need those damn rings- many a time at 3am i have ended up coated in formula and cursed not putting the damn ring in!