Hydrogen peroxide
in volume 130 is a natural solution to remove even the most stubborn dirt that accumulates between tiles. Hydrogen peroxide is easy to obtain in hardware and hardware stores. You can use it to clean the joints.

The solution for a better result is to pour it directly on the joints and rub it with a toothbrush, attacking the dirt. Before using hydrogen peroxide, keep in mind that it is a very strong substance. Therefore, always wear rubber gloves to protect the skin of your hands from irritation and inflammation.

Ventilate the room after using the product so that the persistent smell disappears. If the result with this method is not satisfactory, add a little potato starch to the hydrogen peroxide. Take into account the ratio of three tablespoons of potato starch to a glass of hydrogen peroxide.

Pour the solution on the joints and leave it for 1 hour. Remove everything with a damp microfiber cloth, the joints will be very white.