Deep Cleaning Washing Machine Tablets - Odor Removal & Descaling, 12 Pieces/Box Our washing machine cleaning tablets contain sodium bicarbonate, citric acid. It can completely remove the dirt on the inner wall of the washing machine. A small piece can clean the entire washing machine. Its use method is very simple: 1. Take 1~2 cleaning tablets and put them into the drum of the washing machine 2. Stop the power supply after adding water to the washing machine for 15 minutes, and soak for 2 to 3 hours. 3. Start the washing machine for washing, rinsing and dehydration processes to remove dirt. 4. Wipe clean with a towel. And it can effectively remove the peculiar smell in the washing machine and clothes, ensuring a fresh and odor-free washing experience.