This section is from the book "A Manual Of Home-Making", by Martha Van Rensselaer. Also available from Amazon: A Manual of Home-Making.
One of the following agents should be employed in removing tea stains:
1. Borax, boiling water. If stains are on cotton or linen and not more than a few days old, soak them in a borax solution (1/2 to 1 teaspoon to 1 cup of water) and then rinse in boiling water.
2. A strong soap solution, containing a half-inch cube of soap to each cup of water. Boil the stained material in this solution. Stains 2 or 3 weeks old are removed successfully if they are on small articles of white wash material which can be boiled in a small quantity of liquid.
3. Potassium permanganate, for stains which resist other reagents.
4. Javelle water for persistent stains. This is slightly less satisfactory than the potassium permanganate.
5. Lemon juice and sunlight. Keep the stains moist with lemon juice and expose them to the sun for a day or two. They will be practically removed.
 
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