Hi all. FTM with a 5 day old who has been struggling to latch onto my breast. I have decided to express and feed through a bottle, and got the MAM anti-colic ones. I have just sterilised a few ready for use today, but confused with how to to store them once they come out of the microwave. The instructions say they will keep sterile for 48 hrs assembled the way they are when they go in the microwave, but online says to assemble them into the proper bottle? Anyone have any advice? Veryyyy anxious about my PFB 😁