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TL;DR: No, you should not use bleach on granite composite sinks. Bleach can damage the surface, dull the finish, and weaken the protective coating, leading to staining and premature wear.
If you are wondering can you use bleach on granite composite sinks, the short answer is no. With over 20 years of experience in the kitchen industry, we have seen the long-term effects of using harsh chemicals on these sinks - and it is rarely good news.
Why You Should Avoid Bleach on Granite Composite Sinks
Granite composite sinks are made from a blend of natural stone and resin, creating a non-porous and durable surface. While this makes them resistant to stains and scratches, bleach can still cause surface discolouration and weaken the binding resin over time.
If you want to keep your sink looking new, our how do I clean a granite sink guide shares safer cleaning alternatives.
The Risks of Using Bleach
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Discolouration: Bleach can leave pale or uneven patches, especially on darker sinks.
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Surface Damage: Over time, bleach may erode the protective coating, making the sink more prone to stains.
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Lingering Odour: The smell of bleach can be hard to remove and is unpleasant in food preparation areas.
Safe Alternatives to Bleach
For stain removal, a paste made from bicarbonate of soda and water is effective and non-abrasive. If you are tackling limescale, follow the methods in our are granite sinks durable blog, which include using diluted white vinegar safely.
Final Thoughts on Can You Use Bleach on Granite Composite Sinks
So, can you use bleach on granite composite sinks? It is best to avoid it entirely. Opt for gentle cleaners that preserve the integrity of the surface and keep your sink looking its best. If your current sink is beyond cleaning, explore our granite sinks collection for a high-quality replacement.
For more comparisons and care tips, see our are granite sinks better than stainless article.
For further guidance, read the Better Homes & Gardens cleaning advice for granite composite sinks.