Citrus Sparkle Automatic Dishwasher Powder
Citric acid is available in powdered form in many health food stores, stores that cater to home brewers of beer and wine, soap-making supply outlets and, of course, various online sources. It is sometimes labeled as "sour salt."
2 cups washing soda
1 1/3 cups organic baking soda
6 tablespoons citric acid powder
25 drops grapefruit essential oil
Combine all ingredients in a plastic container or tub and mix completely. Use 2 tablespoons per load of dishes.
Adapted from The Naturally Clean Home, by Karyn Siegel-Maier