Medela’s convenient Quick Clean Micro-Steam bags quickly eliminate 99.9% of all harmful germs and bacteria mostly found on breast pump and feeding accessories. Easily carried in your diaper bag or purse, Medela’s compact, fast and easy to use quick clean steam bags are great to clean and disinfect your breast milk bottles, breast shields, connectors, and nipple shields. Simply rinse your accessories and place them in the quick clean steam bag, add water and mircowave for approximately 3 minutes. You can now rest in peace knowing that your baby’s accessories are and clean and free from any harmful bacteria. BPA free. Each bag can be used up to 20 times.