Review on 💧 Stay Hydrated on-the-go with the KOR Delta BPA Free Water Bottle, 750ml, Lavender by Jonathan Brendemuehl

While the design looks great and this is a really great bottle, I had a really hard time cleaning the rubber rings that came with the bottle. There are two rubber rings (one for the top reseal cap and one around the screw cap) which I believe keep the bottle from leaking. The only thing I don't like about this bottle is that the rubber rings get dirty very easily (have been using them for about 4 months). I wash the bottle every day and there is still black mold residue on the rings. I've tried wiping them down and also used detergent but they still stay on the rubber rings. I hate drinking from a bottle because every time I open the cap I see dirty rubber rings. This is my second KOR water bottle and the first was KOR Aura. I only bought this because the KOR Aura had too much black mold residue on the rubber ring and I had to replace it. I bought this one hoping it wouldn't be that bad, but turns out it's exactly the same thing. I'm not sure if this is just me, but now I'm trying to find a bottle that doesn't have those rubber rings because they're really hard to clean.