i always understood you had to sterilise all feeding equipment up to the age of 6 months but bottles for as long as you were using them. however \link{
www.bbc.co.uk/parenting/your_kids/babies_feeding.shtml\this website} says...
Bottle feeding:
It's important to keep all feeding equipment clean - you MUST sterilise between uses for the first six months. This is because formula-fed babies don't get the same protection from infection as breastfed babies, and milk is the perfect breeding ground for bacteria.
so which is correct?