Dr. Brown’s Glass Bottles characteristic a patented inner vent machine that conducts the air from the nipple collar to the again of the bottle with out blending with the breast milk or components. This Is helping eliminate air bubbles and forestalls feeding issues like colic, spit-up, burping and gasoline.
Distinctive patented -piece inner vent machine
Is helping cut back oxidation
Simple drift of components or breast milk
No nipple cave in