To wash your hands, just add a tablespoon in a bowl of hot water. For maximum effectiveness, the water temperature must be at least 40°C, as mentioned above.

Other useful natural remedies
Hand with lemon
Simply soak your socks in a bowl of very hot water and then add lemon juice (filtered through a sieve). Then leave them to act for a while and then rinse them without using too much water.

Specifically, we need:

Cup of lemon juice (250 ml)
Litre of hot water
In the washing machine with vinegar
Another way to keep an eye on the whiteness of our socks is to use vinegar, which is often used instead of bleach when washing. It is easy to use: put a glass of vinegar in the drum of the washing machine and then run the usual washing program as usual.

Hand with vinegar and baking soda
But vinegar can also be used to wash your hands.