Zum Clean is not a detergent. It removes spots without creating blots - thanks to natural borax that softens water, baking soda that shows odor the door, vegetable glycerin that clings to dirty things, and essential oils so aromatic it brings new meaning to fashion sense. Pour 2 oz. in top-loading washing machines (total of 32 loads). Pour 1 oz. in high-efficiency machines (total of 64 loads).