2 parts borax
2 parts washing soda
1 part citric acid
1 part salt
essential oils – I’m doing 10 drops Purification and 5 drops lemon.
Combine all ingredients and store in an air tight container.
Use 1 tablespoon per load as needed.
For an extra boost, add a few drops of dishwashing liquid (only a few!!!) to the powder before closing the soap container in the dishwasher.
You can also add white vinegar as the rinse agent, though honestly, I forget this most of the time and it still works.