Hard water is a common issue in many Australian homes and can affect the performance of your dishwasher. If your glasses are coming out cloudy, you’re seeing white spots or film on cutlery and plates, or your wash results just aren’t as good as they should be, you may need to add softener salt to your dishwashing maintenance routine.
Dishwasher softener salt isn’t a cleaning product itself — it’s a specialised salt that helps your dishwasher’s built-in water softener unit work properly. Hard water contains a higher than usual concentration of calcium and magnesium in the water, which can leave residue on dishes and build up inside your machine. Softener salt dissolves and helps the dishwasher’s softening system remove hard water minerals before the wash cycle starts.
Dishwasher salt, also known as water softener salt or dishwasher water softener salt, is suitable only for dishwashers with a dedicated softener salt dispenser — typically found in models with an integrated water softening system. If unsure, check your user manual.
It’s worth noting that all Miele dishwashers — and many European-brand dishwashers such as Bosch, Siemens, Neff, AEG, and Asko — are designed with an integrated water-softening system. For homes with hard or moderately hard water, dishwasher softener salt is essential for optimal performance, protecting the machine from limescale and ensuring the best wash and drying results.
You might need to use dishwasher softener salt if:
Step 1: Locate the salt compartment — usually beneath the bottom rack in dishwashers with a softener dispenser
Step 2: Open the cap and carefully pour the softener salt into the reservoir
Step 3: Fill the salt compartment – Be careful not to overfill and always follow usage instructions
Step 4: Start a wash cycle soon after filling to rinse away any excess salt. During the cycle, the dishwasher’s built-in water softener uses the salt to reduce hard water minerals, helping prevent limescale build-up and improve washing results
Important: Do not use regular table salt or other salts not designed for dishwasher softeners — additives and fine grains can damage the softener system.
Using the right softener salt regularly can make a real difference — especially in areas with hard tap water. Over time, regular use can prolong the life of your dishwasher by preventing limescale buildup. This can prevent performance issues, potentially saving on repairs or premature replacement.
Dishwasher softener salt plays a vital role in keeping your dishwasher running efficiently. For machines designed with a dedicated salt dispenser, it’s a simple but essential step toward better cleaning results and long-term appliance care.
For the best results, we recommend:

A concentrated dishwasher softener salt designed to protect your machine and help with hard water performance. Aktivo range is environmentally friendly and septic safe.

Effectively removes lime from hard water and helps deliver spot-free results. The Power Of 4 range is designed with high performance, eco-friendly ingredients to deliver outstanding results.
Need help with your home appliance repairs and maintenance? Check out our DIY videos on our YouTube Channel. All the expert hints and tips to make appliance repairs a breeze!
Visit the Statewide blog where you can find our guides DIY fixes for a dishwasher that is not cleaning properly and expert tips for superior dishwasher performance and savings.