I've been doing research on making up formula and decided to go down the flask route.

I bought one for hot water and one to store the cooled boiled water.

I was just going to make up and thought how do I get the cooled boiled water cooled as I'm putting it in a thermos flask... do you have any idea?

I am only using this method at night time. Il use one flask with boiled water to kill any bacteria in the formula and the other to cool to the correct temp.

Would love your suggestions.