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12 Useful Dishwasher Tips

Posted on by woollards-Admin


To achieve consistently sparkling results, it’s important to take care of a dishwasher and keep it well maintained. There are also ways to get more out of a dishwasher with the right know how.

Salt and rinse aid

1. A white limescale film on the dishwasher interior is a sign that salt has not been topped up when required or the water hardness is incorrectly set on the appliance.

2. To avoid wet items at the end of a cycle, make sure rinse aid is refilled when required. Ensure water droplets can easily run off all items by stacking dishes correctly.


3. Liquid detergent can sometimes provide better results than tablets for shorter programmes.

4. Always scrape off food debris before placing in the dishwasher, but make sure you don’t use washing up liquid as this can cause foaming. If you do, a bar of soap is a good way of removing the foam – just remember to remove it before next use.

Cutlery and wooden items

5. If you have acidic or salt food residues on your cutlery, make sure these are quickly rinsed off on a pre-rinse cycle to avoid corrosion.

6. Steel and silver cutlery items can also react when placed together in the dishwasher and cause corrosion or discolouration. It is advisable to separate the two types of cutlery to prevent them reacting.

7. The cleaning process in a dishwasher is not suitable for items such as wooden chopping boards, wooden spoons and cutlery with wooden handles. Cracking and splitting can take place, so make sure you clean these by hand.


8. Always make sure that rinse aid is topped up as this can ensure that droplets do not form on glasses. If salt levels are low and water hardness is incorrectly set you may see a milky limescale covering on glasses.

9. Using high-quality, dishwasher proof glassware such as Schott Zwiesel glasses and lower temperature programmes, such as the Glass 40°C programme, can help to avoid glass surface corrosion.


10. Black marks appearing on plates at the end of a cycle are generally scratch marks made beforehand by cutlery and are unrelated to the dishwashing results. These can often be removed with white vinegar.

11. Spray arms distribute the water around the dishwasher and can become clogged with small pieces of food, which leads to poor washing results if not cleaned. The top arm can be unscrewed, while the bottom arm will clip off so you can check the outlet nozzles. These can be cleaned under a tap using a cocktail stick.

12. If the filter unit is not regularly cleaned and becomes blocked, food particles won’t be removed from the appliance during the cycle and could redeposit on the dishes. Unscrewing the filter cylinder at the base of the dishwasher and lifting the unit out can remove this. To clean, run under a tap before replacing.


For further help and advice, you can call our product advice line on 0344 892 8999