Pour all of the ingredients into a large mixing bowl and stir to combine.
Place the mixture in a quart Mason jar to store.
Notes
To use, fill up the prewash and main wash dishwasher compartments completely, and run the dishwasher as usual.
If your dishes appear cloudy, use white vinegar as a rinse aid to remove hard water residue. You can also slightly increase the amount of salt to help soften the water.