You can easily make your own dishwasher tablets following this simple step by step. They will clean your dishes naturally. 1. Put 1 cup Baking Soda, 1/4 cup Citric Acid, 1 Tablespoon of On Guard Cleaner Concentrate and 3 drops Grapefruit Essential Oil in a mixing bowl 2. Mix together until the mix has an even consistency. 3. Place in silicon moulds and let sit 4 hours. 4. Store in an airtight container. 5. Use in your dishwasher instead of store bought dishwasher tablets!