Should I sterilise nursing bottles and accessories after each use?

Yes. Breast milk and infant formula are full of rich nutrients, and are ideal breeding grounds for micro organisms. Be sure to sterilise bottles and accessories after each use. There’s a tendency to get caught up in the routine of sterilising bottles, but you should think of the process in terms of a single cycle — from washing to sterilising to storage to preparation to feeding to washing. Wash the bottles clean, make sure that they’re sterilised, and store them correctly afterwards to avoid re-contamination.