Safe, quick and practical. With Medela Quick Clean Microwave Bag you can disinfect breastfeeding accessories such as bottles and tubes in less than three minutes -it only takes three steps. This makes it faster and easier than boiling. Thoroughly disinfects most breast pump accessories, bottles, nipples, pacifiers and cups. Steam cleaning eliminates 99.9-Percent of most common bacteria and germs. Requires just a microwave and water. Each bag can be used up to 20 times. Ideal for storing pump parts between pumping sessions. Thoroughly disinfects most breast pump accessories, bottles, nipples, pacifiers and cups. Requires just a microwave and water.