Clean hands. Clean bottles. Fresh water (preferably boiled and cooled if baby’s under 3 months). Follow the scoop instructions exactly—this isn’t the time for “eyeballing it.”
Once mixed, use it within an hour if it’s been out, or within 24 hours if stored in the fridge. Don’t reheat the same bottle or save the leftovers. Sorry, we know wasting it feels wrong, but baby bellies are sensitive and bacteria grows fast.
Also: shaken, not stirred—unless you’re okay with bubbles and baby gas.