You should wash the nipple part before giving the WubbaNub to your baby for the first time, even if you just took it out of the packaging. [1] X Research source
You must do this before giving the WubbaNub to your baby for the first time. Plan on sterilizing the nipple once a month.
If you washed your baby’s clothes and blankets in the same load, you can let those air dry as well, or you can toss them into the dryer. The WubbaNub must be air dried, however; do not put it into the dryer.