Bests & Worsts Reviews from Amazon

These are great! We started trying out different glass bottles when Dr. Brown's discontinued their 8oz glass bottles. These much cheaper bottles fit all the Dr. Brown's components (cuffs, nipples, vent and tube). The only time we've had a leaking issue (and even then it was just slow drips from under the cuff, not pouring) was when my husband would over tighten the cuff and cause buckling around the base of the nipple. Once he stopped manhandling the bottles they never leaked again. So our bottle set up is now Evenflo glass bottles with Dr. Brown's guts (which can be purchased separately from their plastic bottles). Edited because I forgot to mention that we fill the bottle only to about 7-7.5 oz, not the full 8. Filling it all the way and putting the Dr. Brown's vent in is a nice example of displacement and is the only other factor that has produced dripping for us. So just allow a little extra room in these bottles for the vent.