"Hot shot" method. Put your powder in the bottle ready then take a small flask to put boiling water in & shake to kill bacteria (around 60ml/2oz for a 210ml feed) then fill to required amount with cool boiled water. I usually pour boiled water into container the evening before if I know I'm out the next day, or first thing in the morning so it can cool in time 😊
Could you use the Nuby rapid cool for when you are out? Make them on the go?
I too don’t use aptamil but another anti reflux formula and we use the Nuby Rapid Cool for on the go bottles x