And that alot of things had changed from olden days like feeding breastmilk, last time there is no such thing as pump, not to mention having to warm bm, and even making fm, last time they need to shake the bottle really hard to mix the powder and cause a lot of bubbles in the milk, now the fm just need to rub slightly inbetween the palm and the powder will dissolve and mix well (less air/bubbles in