My bottle/nipple is collapsing during feeding. Any recommendations?Updated a year ago

Over time, milk residues can get trapped in the vent and can prevent it from working properly. 

The best thing to do is to make sure that the ends of the vents (back of the nipple) are clear and free from any blockage. You can easily clean them by kneading the vent tips in warm water. Also, you can sterilize the nipple in boiling water for 5 minutes to clear out anything that may be clogging in the vent. 

If this doesn’t fix the issue, please fill out the contact form and we’d be happy to help you further.