waytooo

waytooo t1_ixz7k1z wrote

I own a similar one for 5 years, the heat retaining is great. My only complain is the stains on the lid. I only drink water with it, but the plastic part (I guess that’s silicone) on the lid that’s attaching the opening has black dots overtime, and I can’t wash it off somehow. Both vinegar and baking soda don’t work. Then my friend who bought together with me told me he has the same issue. I’m wondering if it’s just us, and anyways to clean it up?

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