Make your own whitening product!

When the time comes to use the whitener, take 2 liters of water and boil them in a saucepan.
Then add 200 ml of the whitener we have prepared.
Then bring to medium heat and add the tea towels one by one and let it boil for about 40 minutes.
Use a wooden spoon to stir occasionally.
After this time, remove the pan from the heat, transfer the tea towels and whitening water to a basin and soak overnight.
The next day, remove the tea towels from the basin and rinse them under running water, the result will surprise you.