Our dishwasher cleaning effervescent tablets contain water, disodium EDTA. It can easily clean the dishwasher, saving time and effort. The way to use it is simple: 1. Pour the dishes into the dishwasher. 2. Place one dishwasher effervescent tablet in the main liquid compartment of the dishwasher. 3. Select a high temperature program and wash for 2 hours, then let the inside of the dishwasher dry naturally. And can remove flavor, stains and other effects, a new look.