3. Baking soda

Baking soda is a very versatile product for cleaning the house. Here too, it may prove to be the winning secret ingredient.

To do this, pour the baking soda into a bowl with a splash of water. You must then mix everything well until you obtain a thick paste. Once this paste has been obtained, it must be spread on the shirt exactly on the areas to be cleaned and left to act for 15 minutes. However, if the result is not shiny, simply repeat the procedure described and machine wash as indicated on the garment label.

4. Standard detergents

First immerse the collar in water and apply a standard bleach. Then, using a toothbrush brush the stained spot and wait 30 minutes. Next leave the shirt in water for 30-60 minutes and finally wash it in the machine.