

Bottle discolouration
Hi! I’ve had my spring fling owala for just under 2 years and I’ve started to notice that when I take the boot off my bottle the uncovered part looks super dirty compared to the area covered by the boot. Is there anything i can do to prevent this? I clean it often so not sure why this has happened and want to protect her!
I also feel like the beige bit at the top is hard to clean too and she looks a bit musty, I’ve tried to use a bit of oil to lift the dirt but it didn’t work - any tips welcome :)