Price per ounce. Non-toxic, biodegradable, plant-based, eco-friendly, refill Auto dish detergent is difficult to make without phosphates and chlorine, but we’ve done it. Now you can keep phosphates out of the waterways and chlorine gas out of your kitchen. But follow the directions carefully and do not fill the dispenser in your dishwasher. Remember, less is definitely best, so use only an ounce or less depending on your water.