1. Preparation materials: water cup, baking soda, spoon, washing basin, clean water, clothes stained with tea stains.
2. First, take out the prepared water cup, pour proper amount of baking soda, and add clean water. Stir it evenly with a spoon to form a paste.
3. Dip a proper amount of baking soda into a paste with a spoon, and evenly smear it on the tea stains.
4. Leave the clothes aside and wait for 15 minutes. As a surfactant, baking soda can effectively and gently clean clothes and remove stubborn stains and smells.
5. Take out the prepared washing basin, inject proper amount of water into it, and soak the clothes in water.
6. Rub the tea stains with both hands repeatedly until they are clean.