Tired of stubborn coffee stains on your mugs? Our expert staff reveals five easy methods to remove those pesky brown spots. From baking soda and water to denture cleaning tablets, we've got you covered! Learn how to prevent staining and banish those unwanted marks.

Source: https://www.cnet.com/how-to/the-easiest-methods-to-remove-stubborn-coffee-stains-from-your-mugs/#ftag=CAD590a51e