Originally Posted by sharlan:
Have you considered giving the bottles a bleach rinse, then washing them in hot soapy water? Simple washing in hot soapy water may not be enough to kill the bacteria in all the bottle parts.
I run all my baby items through the dishwasher and then through the sanitize cycle too.
Washing the bottles and sanitizing them still doesn't explain the hot pink color the baby's spit up turns after it sits on the blanket over night.