our health visitor told us you can keep a premade bottle that their mouth hasn't touched for 4 hours before you need to chuck it so we've been preparing them at home then just warming up by getting hot water from a cafe to pop it in a bit before bab needs it. we had 2 hours in our head and haven't been doing long trips out anyway but it's worked so far
We have the Tommee tippie cooler. It works a dream! Helps us when we’re out and we don’t have to worry about asking anyone for anything ☺️. But we have also pre-make a bottle and keep it in a bottle warmer for 2 hours and that’s good for when our little one goes from 0- hunger 😂 xx
Nuby rapidcool and hot shot method (like the prep machine) is best.