My hubby didn't understand the hot spots thing until he experienced it firsthand by shaking a bottle he thought was about right and having it turn scalding hot in his hand

You could have him try using a warmer. I have the munchkin Brand and it works so well! Super fast and convenient

Not only does microwaving breast milk destroy proteins and vitamins of your precious liquid gold but it may also be unevenly heated and burn your babies mouth. 😊