How to Descale Your Dishwasher or Glasswasher Properly
- May 1
- 2 min read
In busy kitchens, it is easy to focus on day-to-day cleaning and overlook what is happening inside your equipment.
Dishwashers and glasswashers are used constantly, and over time, limescale can build up within the system. This build-up is not always visible, but it can affect performance, efficiency, and the quality of results.
Regular descaling is a simple but important part of maintaining your equipment and ensuring it continues to operate as expected.
Why Descaling Matters
Limescale forms when water is heated, particularly in hard water areas. Over time, this can coat internal components, reduce heating efficiency, and impact wash quality.
Without regular descaling, you may start to notice:
Poor cleaning results
Longer cycle times
Increased energy usage
Reduced lifespan of equipment
Taking a proactive approach helps avoid these issues and keeps machines running efficiently.
A Simple Approach to Descaling
Descaling does not need to be complicated, but it does need to be done properly.
As outlined in the Merlin Gold C6 Catering Descaler guide, the process typically involves isolating the machine, draining it fully, and running a controlled cleaning cycle using a descaling solution.
The key is allowing the product time to work effectively while ensuring the machine is properly rinsed before returning to normal use.
MERLIN C06 CATERING DESCALER - 2x5ltr
Safe On Stainless Steel
Works Fast
Removes Catering Limescale
Concentrated
Use to Remove Limescale On Most Kitchen Surfaces. Taps, Worktops, Around Dishwashers & Bain Maries.
Key Steps to Follow
While exact processes may vary depending on equipment, a standard descaling routine includes:
Turning off any automatic chemical dosing systems
Draining the machine completely
Refilling with clean water
Adding the appropriate amount of descaler
Running the machine to allow the solution to circulate
Draining and rinsing thoroughly with fresh water
The guide highlights a total process time of around 40 minutes, depending on the level of scale and machine type.
Taking the time to complete each stage properly ensures the best results.
Consistency Is Key
Descaling is not a one-off task. The frequency will depend on:
Water hardness
Machine usage
Type of operation
In high-use environments such as hospitality or catering, more regular descaling may be required to maintain performance.
Building it into a routine maintenance schedule helps avoid unexpected issues and keeps operations running smoothly.
Getting the Best Results
Like many cleaning processes, descaling works best when it is done consistently and correctly.
Using the right product, following the correct process, and allowing enough time for the solution to work all contribute to better outcomes.
It is not just about removing scale, but about protecting equipment, maintaining hygiene standards, and ensuring reliable performance.
Keep Your Equipment Running Smoothly
A well-maintained dishwasher or glasswasher does more than clean effectively. It supports the overall efficiency of your kitchen and helps avoid unnecessary downtime or repair costs.
Regular descaling is a simple step that can make a big difference over time.
If you would like advice on descaling products, equipment care, or building a maintenance routine that works for your business, the Seldram team is always happy to help.