Rapid cool

You’d need to use a cool water steriliser like the Milton tabs. Can’t use microwave with it to clean due to the metal and the top can’t be used in steam sterilisers either.

I use the hot shot method with mine (google/youtube if you’re not sure what this is). That way I get unlimited uses out of it as long as I have access to hot water. Only downside is you’ll need to wait for the milk to cool down a bit, so not ideal if baby starving and screaming :(

Thank you for the response, never thought of that with the microwave 🤷‍♀️
Yeah I did the hot shot method with my daughter just using a normal flask. I use to try pour it in plenty of time to give it chance to cool.
X

You can but a steraliser specifically for the nuby flasks. I have one it's UV and only takes a minute that is what I use to steralise. They can't gonin microwave. X

I’ve used it 8 months literally since her birth, do the hot shot method so the only thing that’s ever been in either flask is just hot water. Also take it out all day with small tubs of formula and now she’s on bigger bottles I just a big flask so get about 4 bottles from it as it doesn’t need cleaned between uses with it only having hot water in