My Philips Avent Natural nipple collapses

The anti-colic valve is located below one of the numbers that is printed on the base of the nipple.

It is important that you clean your nipples regularly to avoid any blockage in the anti-colic valve. To do this, follow the steps below:

1. Disassemble the bottle and nipple, and wash them in warm soapy water
2. Find the valve, located below one of the numbers that is printed on the base of the nipple
3. Hold the nipple below the valve and pull the tip firmly, until you see the valve opening
4. Continue your cleaning routine by sterilizing your parts and allow them to air dry

In case the nipple collapses during feeding, follow the steps below on how you can fix this:

1. Pull the nipple out of the bottle using your clean fingers or tongs
2. Find the valve, located below one of the numbers that is printed on the base of the nipple
3. Pull the nipple sideways, making sure the valve is on top while you are pulling the nipple sideways. Pull firmly until you see the valve opening
4. Once opened, you can continue the feed