If you regularly drink coffee or tea, you may notice brown stains building on your mugs, ... I set out to find a solution to prevent the build-up of stains on my mugs, cups, thermoses and coffee pot.

Instructions. 1. Rub the lemon wedge on the inside of your mug. Lemon is a basic component of any natural cleaning arsenal. It’s a clarifying agent, and its acidic qualities help remove stains ...