Natural coffee filters should be brown not white. The white filters go through a bleaching process to make them white. When bleaching coffee filters the chlorine releases a toxin called dioxin and after much exposure you can get dioxin poisoning. That's why I use Melitta & another brand not mentioned on Influenster. Coffee is my only vice but that doesn't mean I have to further poison my body with chemical. With these coffee filters you will taste the difference in your coffee. It taste better & even smells better.