I have a 1.5 year old and currently living with my mom. She helps me tremendously but gets on my LAST NERVE! She texts me saying my daughters baby vitamins leave a smell in her sippy cups. Which I have also realized and just scrub them really good and the smell dissipates she decides pouring Clorox bleach in the sippy cups and letting them sit overnight will do the trick ... like are you fucking insane. Now don’t get me wrong I am a holistic mama and I told her I would soak them in vinegar tomorrow to get the smell out but Clorox bleach!!! It just seems way too harsh of a chemical and toxin to be putting in a sippy cup to clean or sanitize it ... i know you can let the bottles soak in a bowl with maybe a cap full of bleach and water to sanitize them but she literally poured bleach into each cup and added water and was going to let them sit overnight. ... I threw the bottles away I’ll just buy some new ones. It really has me thinking that maybe she’s slow ? Like in what universe does cleaning a sippy cup with Clorox bleach seem safe and un-harmful to not only a baby but any person for that matter ???