Microwave steam sterilizer is a safe and efficient way to use natural steam to kill up 99.99% germ and bacteria on baby bottle, nipple, teethers, pacifiers, baby toy and breast pump accessories in the microwaves without chemicals. Theres enough room to hold 4 extra wide feeding bottles. The locking tab is designed to protect everything inside and prevent accidental opening, too. And it is compact and lightweight enough to fit all microwaves and makes ideal use when traveling. Unlike the electric sterilizer that takes up much counter space, the sterilizer provided by our microwave sterilizer supplier can be stored in the microwaves and taken out when used. Is a microwave sterilizer safe Microwave bottle sterilizers are safe and efficient for sterilizing baby bottles and accessories when used correctly. Follow these tips: 1. Read and follow microwave sterilizer supplier instructions carefully. 2. Ensure items are microwave-safe, such as BPA-free plastics or glass. 3. Clean bottles thoroughly before sterilization. 4. Use the recommended amount of water for steam. 5. Avoid overfilling to ensure proper steam circulation. 6. Follow heating times specified by the microwave sterilizer supplier. 7. Handle items with care as they may be hot. 8. Clean the sterilizer regularly to maintain effectiveness. As a professional microwave sterilizer supplier, JOYSTAR provides feeding bottle sterilizer, electric breast milk pump, breastfeeding products, microwave bottle sterilizer safe, etc. For microwave bottle sterilizer instructions or how to sterilize baby bottles in microwave, please feel free to contact us!