Hey ladies so I'm a new mom and I've been sterziling my babies bottles with an avent steamer but the nipples have been getting yellow, I'm planning to replace them after the three months but i still want to use them for a while and I read that using a capful of bleach with some boiling water will fix the nipples and it did help but I read to just let the nipples air dry and the bleach will dry out but i was scared since after all I am using bleach so I washed the nipples and let them dry, do any momma's use the bleach method for sterilization? Is it fine to just let the bottles air dry after or do you rinse it off?