Dishwasher expert Richard Howarth has clarified whether rinse aid and dishwasher salt are essential, how they function, and a frequent error to avoid. The senior dishwashing product manager at Haier & Hoover UK & Ireland provided insights into these often-overlooked products.
Rinse aid: not essential but beneficial
Howarth explained that rinse aid is not essential for cleaning but significantly improves drying and reduces water spots and streaks. It helps water sheet off dishes, leaving them drier and shinier, especially in hard water areas.
Dishwasher salt: protects the machine
Dishwasher salt serves a different role, replenishing the machine's water softening system to prevent limescale and maintain optimal performance. In hard water areas, it protects the appliance and enhances cleaning results.
Using both for best results
The two products cannot be used interchangeably. Rinse aid improves drying and prevents spotting, while salt softens water and protects the appliance. For hard water households, using both yields the best outcomes for dishes and the machine.
All-in-one tablets and common mistakes
All-in-one tablets may suffice for some, but hard water users may benefit from additional salt and rinse aid. Howarth warned against substituting white vinegar for rinse aid, as its acidity can interfere with detergent and damage rubber seals. He advised regularly checking salt and rinse aid indicators, cleaning filters, and running monthly maintenance cycles.
