Combine ¼ cup of salt and ½ cup of baking soda into a large pot filled with water. Add the yellowed items, then boil for 30 minutes. It is not uncommon for larger, thicker items such as tablecloths to require repeated boilings or be left for longer periods of time to whiten., Once you have removed your cotton or linen from the pot, move it to the sink. Run it under cold water, making sure to turn the item until it it soaked and you are sure all the cleaner is removed. This prevents it from turning brown and degrading later.


You may also want to lay the cloth flat out under the sun to dry. Avoid bunching the fabric so that it doesn’t stretch. Avoid the dryer, as it can also stretch and dull the fabric.
 Add a half a cup of salt into the wash cycle to give washable fabric renewed color. This works great on preserving new clothing as well as restoring fabrics that have begun to fade., Combine four tablespoons of salt to one quart of water. Use a cloth or sponge to apply the saltwater to the stains. Gently work the water into the stains, letting it soak and adding more as needed, until the stains disappear and you can wash the clothing normally., Combine two tablespoons of salt to one quart of cold water. Soak the stained clothing in the saltwater for an hour. Afterwards, wash the clothing as normally, either using a washing machine or hand washing in warm, soapy water.


Fabric that can take high heat, such as cotton and linen, can be boiled in a pot of water after washing for extra effect.
Boil yellowed cotton and linen.
Rinse in cold water.
Brighten colors.
Remove perspiration stains.
Neutralize blood stains.
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