That coffee or tea stain may not need bleach; Georgia Extension says a 15-minute soak with vinegar, dishwashing detergent and warm water may help lift washable fabric stains
Coffee and tea stains are common problems that can often be treated without harsh chemicals. Rinsing the stained area with cool water immediately can help prevent discoloration. A solution of warm water, liquid dishwashing detergent, and white vin...

For washable fabrics, the Extension recommends rinsing or sponging the stain with cool water as soon as possible. If the stain remains, soak the stained item for 15 minutes in a mixture made of one quart of warm water, half a teaspoon of liquid dishwashing detergent, and one tablespoon of white vinegar, and wash it after that. Bleach is suggested only if any remaining stain persists and only when it is safe for the fabric.
Why coffee and tea leave stubborn marks
Coffee and tea may seem simple beverages, but they both contain tannins, which are naturally occurring substances found in plant life. According to the American Cleaning Institute Stain Removal Guide, tannins are responsible for color and taste but can also attach themselves to the fabric if not removed quickly. The longer the stains stay in the fabric, the harder they become to get rid of. That is why most stain-removal experts recommend acting fast. Simply blotting the excess liquid and rinsing the stained area with cold water, as soon as the spill happens, can go a long way.
How vinegar helps
The vinegar solution is often mentioned because it is simple to prepare using common household ingredients, but the University of Georgia Extension does not recommend using vinegar by itself. Instead, vinegar works if it is a part of a mixture with a small amount of liquid dishwashing detergent and warm water. In this mixture, the detergent helps break down grease and loosen dirt trapped in the fabric, while vinegar will help dissolve the stains that are left after the detergent has done its job. After soaking the item for 15 minutes, it will be necessary to rinse it well and wash it according to the label. If the stain is no longer visible, no further treatment is needed.
When bleach should be a last resort
Many believe that bleach should be the first option used on a stubborn stain. However, Georgia Extension says that the opposite is true. After rinsing, soaking, and laundering the garment, bleach should be considered only if a stain is still visible and only if the fabric’s care label permits its use. Chlorine bleach is suitable for some white fabrics, while oxygen bleach is a safer option for many colored washable garments.
It is also suggested by the Extension to avoid putting the stained garment in the dryer before ensuring the stain has been completely removed. Heat will fix a stain that has been left in the fabric and will be much more difficult to remove later on. If any discoloration remains after washing, soaking is usually a better solution than using harsher methods right away.
Different surfaces need different methods

Coffee and tea spills should be treated differently on carpets, upholstery, wood furniture, and granite because each material reacts differently to moisture and cleaning products. For instance, carpet stains must be treated by blotting the stain and then applying a relatively mild detergent solution and diluted vinegar. In the case of wood furniture, it should be cleaned promptly with detergent foam to prevent too much moisture that can ruin the finish. Using the wrong method on the wrong surface may spread the stain or damage the material instead of removing it.
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