Hi Nicole,
We're sorry that you're having some trouble with cleaning your FinalStraw!
If you haven't tried it yet, placing your straw for a turn in the dishwasher is the easiest way to get a deep clean. Place it in a "V" formation and you should have a nice and clean straw.
If there's any way we can be of assistance, please let us know at halp@finalstraw.com
-Shelby & The Final Crew
“Love it! very cute/ convenient and EASY TO CLEAN which I love. So easy if yo want to just keep it on your keys or attach it to your purse so you can have it anywhere you go!”