If you have a white porcelain sink and tub, the chances are that you have wanted to find a way to whiten them without using bleach, the out-of-fashion standby.

What is the matter with chlorine bleach? Breathing in the fumes can irritate the lungs, which is especially dangerous for those with asthma or emphysema. It is also highly corrosive and can damage the skin, eyes, and other membranes. It is listed as a hazardous air pollutant in the 1990 Clean Air Act, and exposure to chlorine in the workplace is regulated by federal standards.

What is the top eco-friendly solution? Using this one simple ingredient is the best way I have found to have both a green –and white- sink. It easy easy to find at natural food stores.