How to use nuby rapid cool?

Well I’d say there is two ways to using them. I didn’t know the second way but use it this way constantly now!!

First way:
Fill up kettle with fresh water and boil. Tip water into nuby flask to the amount of oz you need (marked inside, if you can see it!). Add powder, lid on and shake. Tip upside down and press little circle on lid. If orange, it’s too hot still so keep shaking. If green you’re good to put it out. Clean and sterilise. Can’t use for 3 hours after exposure to heat.

***I can’t see the measurements personally inside the nuby flask so I first measure the hot water into the bottle. Then tip into flask***

Second way:

Fill up kettle with fresh water and boil. I tip amount needed into bottle to ensure correct measurement. I then tip some of the hot water into the flask, it depends how many oz to how much. Usually 1-2oz of boiling water left in the bottle. The rest of the hot water into the nuby flask and shake (so just water no powder). Wait till turns green so cool

Add powder to the boiling water still in the bottle and swirl until mixed and then add cooled water from nuby into bottle and mix. This way you don’t have to constantly sterilise as it’s only had boiling water in. Xxx

What if I wanted to use it out of the house? Would u need a flask for boiling water? X

yes, buy a good flask and boil water straight into flask just as you are going out. That’s why I always use second method as you don’t have to worry about sterilising it whilst out! Xx

Yeah. It hasn’t arrived yet but in the picture it looks like it has 2 bottles? Is that right? Xx

Depends what you buy. I think the other is a flask for hot water but I’ve only ever bought a single x