It is not necessary to get rid of terry towels, which later became hard, like sandpaper. There are a few simple ways to restore towels to their original appearance.

Vinegar
Sometimes towels lose their former softness due to hard water. You can neutralize the effect by rinsing in water with vinegar. ½ cup of vinegar is used for 10 liters of water.
Vinegar and soda
Take 1 cup of table vinegar and pour it into the compartment for liquid products in the washing machine. Start the washing cycle at a high temperature without rinsing and spinning. Then add ½ cup of soda to the powder dispenser and repeat the wash cycle, but with a rinse and spin cycle.
Salt
2 Art. l. salts are dissolved in a liter of cold water. They put old hard towels there and leave it for 30-40 minutes. After that, things are thoroughly rinsed, carefully wrung out and hung to dry. A steamer is used during ironing.
Rubbing alcohol and salt
Dissolve 2 tsp in 2 liters of cold water. ammonia and 2 tbsp. l. salt The towel is soaked in this product and left for 2 hours. Then everything is thoroughly rinsed and dried.