Here’s a recipe for dishwasher detergent:
1 c. borax
1 c. baking soda
1/4 c. table salt
2 packets unsweetened lemon Kool-Aid
Mix all ingredients, add one tablespoon to each load. I generally add a tablespoon to the pre-wash compartment of each load. This cuts down on the amount of dishwashing detergent I buy. For our needs, this works great as a pre-wash. I tried it for the pre-wash and main wash, but I had a problem with stuck-on food.