Hi,

I have a white carpet at home and I sometimes drip coffee on it. The last coffee I dripped on the carpet left a greenish/blueish stain after I cleaned with Amway. I am attaching a photo of the stain. Another coffee left a greenish halo around a yellow stain. Is there a logical explanation why different coffees leave different stain colors? (I use Amway for all cleaning work and carpet is the same).

Thank you