So I bought a new baby bottle from baby-pants a few weeks ago and have run into a problem with the nipple (which is their NUK 5 version of a regular baby bottle nipple). I have made a hole using a toothpick as recommended by both the instructions and various people online, but the problem is I can only drink about a quarter of the bottle before I lose air in the bottle and find it tremendously difficult to suck out any more fluid without unscrewing the cap to allow air back into the bottle.
Has anyone else experienced this same problem? Does anyone have a solution? Do I just need to make the hole bigger or what do I need to do to ensure a consistent flow of fluid?
It seems every site I've looked at has insinuated that merely making a hole will keep the bottle working just fine. Is this perhaps a user error then?