Dishwashers are designed to simplify dish cleaning, but achieving spotless results often requires more than just detergent. Two frequently overlooked products—rinse aid and dishwasher salt—play crucial roles in the cleaning cycle.
Expert insights on rinse aid
Richard Howarth, senior dishwashing product manager at Haier & Hoover UK & Ireland, clarifies that rinse aid is not essential for cleaning but significantly improves drying and reduces water spots. He explains that rinse aid helps water sheet off dishes rather than forming droplets, leaving glasses and cutlery drier and shinier. In hard water areas, the benefits are even more noticeable.
Why dishwasher salt matters
Dishwasher salt serves a different purpose: it replenishes the appliance's integrated water softener, minimising limescale buildup and ensuring efficient operation over time. Howarth emphasises that in hard water areas, using salt protects the machine and enhances cleaning performance.
Using both products
These products are not interchangeable. Rinse aid improves drying and prevents spotting, while salt softens water and protects the appliance. For households in hard water regions, using both typically yields the best results for dishes and the dishwasher itself.
All-in-one tablets and common mistakes
Many all-in-one tablets include rinse aid and salt, which may suffice for some. However, in hard water areas, replenishing the salt reservoir and using liquid rinse aid can still improve drying and shine. Howarth warns against substituting white vinegar for rinse aid, as its acidity can interfere with detergent and damage rubber seals over time.
Regularly checking salt and rinse aid indicators, along with routine filter cleaning and monthly maintenance cycles, helps keep the dishwasher and dishes in excellent condition.



