I might be being really simple but.....
Many moons ago when my daughter was bottle fed I was able to make up a days worth of bottles and pop them in the fridge to be heated up when needed. If we went out we took a cold bottle of made up milk, a travel flask and heated it up when it was needed.
I have a brand new grandchild who is bottle fed. Each bottle needs to be made up fresh with boiled water that is at least 70 degrees to kill any bacteria in the formula which is fine when at home but how do you manage this when you’re shopping or at the park etc?
At the moment my daughter is taking the little pre made bottles of formula but this is quite costly.
How do you do it?