How to make up formula?

[b4baby]

So I have been expressing milk for DD but today my breast pump has stopped working so I am going to start weaning her onto formula.
I looked on the back of the box and it says that you have to boil water, cool it for 30 mins and then add the formula and then cool the milk to a drinkable tempreture! Well this isn't going to happen with DD who goes 0-hungry in 5 seconds flat
I know most people don't do this so just wondered how you do it as I heard you have to add formula to the water when it is at a certain temperature.
HELP

 

[xLaura]

I boil kettle wait 30 mins add powder then put in a jug of cold water to cool down then put in the fridge. I make a couple at a time. You have to use within 24 hours. Then obv warm up once you get it out.

 

[melfy77]

Same here. DD is also very impatient when it comes to her food, so I make enough formula for a day, and at night, I prepare bottles before going to bed so I just have to warm it up and feed her.