Our drain clogging removal powder contains baking soda and lemon extract. It can efficiently breakdown, prevent blockage, remove odor, simple to use. Its use is simple: 1. Open the package and pour it down the drain. 2. Fill the drainpipe with hot water. 3. Wait 15-30 minutes for the dirt to dissolve. 4. Rinse with plenty of water. remove the unpleasant odor.