Homemade Dishwasher Soap

Has anyone tried this from Make Your Own Dishwasher Soap & More? – 1 Cup Washing Soda – 1 Cup Borax – 2-3 drops of essential oil Add all ingredients to food processor bowl or blender and process until they are powder. Store in a canister or coffee can which is airtight. Use 1-2 tablespoons per load depending on the hardness of your water. If you are getting spots or