The main active ingredients of the Sonett Tablets for Dishwashers are sodium carbonate, silicates and sulphated castor oil. They make food left-overs 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 it is the case with all other Sonett products. Important note: Adjust the built-in water softener in your dishwasher to be one hardness range higher than the actual hardness of your water. 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. Dosage: 
 Crockery with 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 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. Always keep the compartments for the Regenerating Salt and Clear Rinse replenished.