Hi, currently trying to introduce an occasional bottle of EBM to DD. After several failed attempts she happily took a full feed from a TT Closer to Nature bottle with a slow flow teat this morning. She has refused bottles in the past as the milk seemed to come out too quickly for her and made her gag and retch but she did seem to be sucking very hard on this bottle and her cheeks were quite red (similar to after a BF) once she had finished. Am afraid DS refused bottles so I have no idea what's normal and just wanted to check how you know what teat speed to use. Sorry to be asking what is probably a very silly question 