Blackened Tile Joints? The Miraculous Cleanser To Whiten Them Easily. February 10, 2025 by Admin 100 g baking soda – 75 ml hydrogen peroxide – 1 teaspoon dishwashing liquid How to do it 1. Mix all the ingredients together. 2. Remove the product with a sponge. 3. Gently rub the joints. Read more on the next page << Previous Next >>