If you’ve read of the uses of salt in your dishwasher, you may be asking, "can I use normal table salt in my dishwasher?", or "can common salt be used in the dishwasher?" The answer is no. Dishwashers require specific dishwasher salt, which is coarser and purer than table salt, allowing it to dissolve slowly and effectively in the softener unit in the dishwasher(1). This ensures a consistent supply of softened water during wash cycles, which in turn both improves cleaning efficiency and prolongs the lifespan of your appliance.
Using normal table salt, which often contains additives like iodine or anti-caking agents, can result in build-up on your dishes and inside your appliance, damaging your dishwasher's internal components and impacting its performance. Additionally, table salt dissolves differently and may cause blockages in the machine's water softening system, leading to suboptimal cleaning results. To avoid long-term damage and potential warranty issues, it’s crucial to use dishwasher salt, as it is specifically designed to be free of impurities that could harm your appliance. Always follow your manufacturer's recommendations for the best results.
(1)https://www.finish.co.uk/blogs/ultimate-dishwashing-guide/how-and-why-to-use-dishwasher-salt
