Best flask to use for formula feeding in the night for the hot water ?

We use the nuby rapid cool flasks. They are great. I'll use the thermos flask myself once they are no longer needed for baby!!

I just used one of Amazon with digital thermometer, it was a life saver x

I use a Nuby Rapid cool, they are amazing and i just put the hot water in a 1L flask i bought from asda, hot shot method all the way!! The flask from asda is soo good!xx