Ok so prob sounds so silly I know how to make them up if I'm using them at home but I've breast fed for 8months and starting to wean her off very slowly. I'm worried about making a bottle to take out and about with us. I've seen some parents have a bottle of water and the powder in a container to mix when ready but still not sure about cooling water before we go out or do u leave it? Any help would be great as I'm really not up to scratch on bottle feeding.