I agree with musicpisces. I breastfed/pumped for my two kids, and I just washed the parts that touched the milk after every use and let them air dry. But, if it makes you feel safer, you could stick them in the dishwasher every night so they get "sterilized" at the end of everyday. If you don't have a dishwasher, then you can wash them as normal, then let them sit in water with a little bleach in it for 5 mins. Just make sure that after that, you rinse them with clean water VERY well, so your baby doesn't get bleach in his/her system.
Just know that it doesn't HAVE to be sterile... your baby needs a few germs to bolster that immune system! :)
at 1:26 PM on Dec. 16, 2010