the main active ingredients of the Sonett Tablets for Dishwashers are sodium carbonate, silicates, and sulfated castor oil. They make food leftovers swell, emulsify and dissolve fat. Bleaching oxygen (sodium percarbonate) serves for removing tea and coffee residues from glasses and cups. Citrate and polyasparagin acid (a protein occurring in snails and mussel shells, but petrochemically reproduced) effectively bind hard water residue in dishwashing water. The ingredients are completely biodegradable as is the case with all other Sonett products. Important note: Adjust the built-in water softener in your dishwasher to be one hardness range above your local water hardness. Ranges of application: Indicated for all types of household dishwashers. Only to be used for dishwasher-proof crockery. Not to be used for silverware, lead crystal glass, and hand-painted chinaware. To adjust the ion-exchanger in the dishwasher: See Info Sheet “Dishwasher Detergent; Clear Rinse; Regenerating Salt”. Dosage: Crockery with a normal level of dirtying: 1 tablet per washing cycle Crockery heavily dirtied: 2 tablets per cycle Important note to ensure good dishwashing results: Adjust the built-in water softener in your dishwasher to be one hardness range higher than your actual hardness of the water. Example: Your water hardness is range II (8.4–14° dH/ 15–25° fH), then adjust to hardness range III (>14° DH / >25° fH). For doing so, please consult the Instructions for Use of your Dishwasher (s. Info Sheet “Dishwasher Detergent”). Always keep the compartments for the Regenerating Salt and Clear Rinse replenished.