The recipe should give you enough to make 2 ice cube trays worth of dishwasher detergent tabs. They should last 28-56 loads depending on the load size (you can cut them in half).
Why wash your dishes before you wash your dishes? Finish Fresh Scent Automatic All-in-1 Powerball Dishwasher Detergent Tabs work to clean in three ways. The powerball presoaks the dishes to loosen tough stains, then potent cleansers give everything a good scrubbing before the rinsing agent eliminates spots and leaves glass sparkling. Package contains 32 tabs.
When you take the dishwasher detergent tabs out of the ice cube trays, they will be a little crumbly. You can just collect and keep the extra crumbs and combine them to use in a small dish cycle.
At $.05 per tab, making homemade dishwasher detergent tabs not only saves us money, but it saves us from the toxic chemicals in commercial dishwashing soaps.