Using undiluted, harsh bleach or concentrated chemical solvents on a BLANCO SILGRANIT sink is strongly discouraged because aggressive chemicals can degrade the protective finish and cause unwanted surface discoloration. However, for deep sanitization or stubborn organic stains, you can use a heavily diluted solution of household bleach mixed generously with water, applied briefly, and then rinsed thoroughly with clean water. For daily cleaning, mild dish soap and warm water are more than sufficient to maintain the pristine appearance.
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