Hot water 100 degrees with infant formulae

Yup, not advisable to use hot boiling water, at most is 45 degrees celsius. And note tt u shld feed baby the mixed milk within 2 hours of preparation because any longer, there's a risk of bacteria breeding. I recommend tt u buy a portable warmer. I'm using Lollababy tt has specific temperatures. Very convenient for me to warm chilled BM or get the right temp for formula milk. Compatible with most bottle brands like Avent. If not, can also buy the adapter.