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Tannins are fermented organic materials that are created by the breakdown of vegetation. When water passes over and through this material it takes on a yellow to amber color. You have likely saw a lake or river flowing with a light brown or amber color water. In quick moving rivers, the water can even take on a the look of a root beer as it falls over rocks and down small waterfalls. While this color is often mistaken for dirt or pollutants in the water, it’s actually caused by tannins.
While the water affected by tannins does not pose any health or safety risk when consumed or used in the home, it can create some problems. Besides the unappealing color, affected water can have a plant-like, musty odor to it, and a tangy aftertaste when consumed. Tannins permanently stain laundry and even porcelain fixtures and dinnerware in your home.
An easy way to test if your water contains tannins is to fill up a clear glass and let it sit overnight. In the morning, if the discoloration is more noticeable at the bottom of the glass, the color is likely caused by iron as the heavier iron particles will naturally settle. If the entirety of the water remains the same color, tannis are likely the culprit.
If you are experiencing drinking water that looks like a glass of iced tea but smells and tastes bitter and earthy, it may be time to get your well water tested and treated for tannins. Crystal Quest’s Tannin Removal filtration system can address you well’s tannin problem and reduce problem minerals, odors,tastes, and other discoloration issues that are commonly found in homes with a well water supply.
