It is possible to use dishwashing soap in an automatic dishwasher; however, just using plain dish soap won't do! If you have been unfortunate enough to try this, you will agree that the giant mess of bubbles overflowing the kitchen is not worth the experiment. The next time you are out of dishwashing detergent, you can make your own using a few items that you will have around the house.
Things You'll Need
Dishwashing Detergent Alternative
Place your dirty dishes, cups and glasses, into the dishwasher in the normal loading pattern.
Place two to three drops of regular dish soap in your dishwasher's detergent cup. You really only need a couple drops.
Add 1 1/2 tablespoons of baking soda, filling the cup about 2/3 of the way to full.
Fill the remaining space with regular table salt, about 1/2 tablespoon. Close the soap compartment.
Run a regular cycle on the dishwasher and enjoy the clean dishes -- no hand-washing needed.
If you plan on using this recipe on a regular basis, mix 2/3 cup of baking soda and 1/3 cup of salt and store in an airtight container. Use 1 to 2 tablespoons of the mixture and 2 to 3 drops of liquid dish soap for each load of dishes.
You can also use white vinegar in place of a drying agent in the dishwasher.
Using homemade products may void the manufacturer's warranty.