What should I do when the teat my baby is using is too slow, but the next size up is too fast?
This sometimes happens, but be assured it won’t be a problem for long.
If you move your baby to the next size, but the flow is too fast, try further tightening the rim of the teat. This compresses the air valve which restricts the air flow and so, the flow of milk out of the teat.
Alternatively, slightly loosening the rim on the size that is deemed too slow can increase the flow of milk through the teat.