Claire- i THINK the Milton's stuff you can just leave on the stuff, but i think i only ever used the stuff with nixon once or twice cause i had samples. Have u got something with the packaging that says what to do?
I wash up my bottles and teats make sure all the suds are off etc and then sterilize it all (teats included)
Tyron is on a number 2 but i am still putting some thickener in with his ebm so needs to have a faster teat, number 1 should be fine but if he got frustrated with it i think he'd be right now at 2months to use the number 2 also.