Keeping your Cirkul water bottle clean prevents bacteria and mold from building up where you ... Start by taking off the cap and removing the flavor cartridge. The cartridge itself shouldn't ...

Ello Syndicate 20 oz Glass Water Bottle: This bottle has a cap problem, with reports of mold building up. Lifefactory 22 oz Glass Water Bottle: The wide mouth was awkward to drink out of—it felt ...