✨ Mixing warm cold milk Some parents combine freshly pumped milk with already-chilled milk to save bottles and fridge space, especially when pumping around the clock • Why: faster, fewer dishes, less mental load • Why the controversy: mixing temps may allow bacteria to grow faster, so most guidelines suggest cooling fresh milk first before combining 👉 This is a “risk tolerance context matters” topics. I’m of the opinion this is fine to do if you’re going to feed that milk the next day or get it