Review on 🌿 Rubbermaid Refill Reuse: 2 Pack, 20 oz Chug Bottle - Green/Blue - Efficient & Eco-Friendly Hydration Solution by Amy Fenner

I bought 4 packs of water bottles and reviewed them, so my review will mostly reflect that. They are very mold resistant. The only reason one of my older ones had a patch of mold was because I never let them dry. Remember to wash them with soap and water from time to time or put them in the dishwasher and let them dry completely. If you do this then I'm sure the mold won't grow. I know they're supposed to be mold resistant, but if you never let something dry, sooner or later it's going to start moldy. I also like them more than other brands because there is no rubber seal inside. I have several Rubbermaid water bottles with a rubber seal inside and the seal has started to mold because I can't dry it. So, in general, take them and let them dry from time to time.