My health nurse said that although a study has found that there's no need to sterilize they still have to recommend it - for both EBM & formula. She also said that with our water levels being so low in Melbourne that it's more important than ever to sterilize as there's no telling what could be in the water.

What I do with my bottles is:

Wash and scrub the bottles & teats then place in sterilizing solution (I use Safeway's home brand). I have a plastic container set up next to the sink with the solution in in. I change the solution each day.

Place the bottles on a drying rack. Place the teats and caps on a clean tea towel to dry.

When dry I almost fill the bottles with cooled boiled water.

I then top the bottle up with boiling water before I add the formula in and then there's no need to heat your bottles.