text: I just switched from bf to formula yesterday after 10 weeks. In the instructions for the steriliser, it says the contents will remain sterile for 24 hours if you leave the lid on. However, does anyone know when you take the lid off how long you have before you have to use the bottles/pump? Do you have to use it straight away or is there an hour window or something? Thanks
  Not sure if it's right but once steraliser I screw all the bottles together and leave for 24 hrs as long as kids are on