The benefits of preventive maintenance
By incorporating preventive maintenance, you not only avoid unexpected breakdowns but also save on:
- Energy costs – Dirty parts make appliances less efficient.
- Repair costs – Minor interventions prevent major faults.
- Replacement costs – Well-maintained appliances last longer.
- Loss of productivity – No equipment downtime during peak periods.
- Hygiene issues – Regular maintenance helps ensure compliance with HACCP standards.
Practical maintenance tips for your commercial kitchen equipment
1. Cooker hood maintenance
A cooker hood often does its job without you even noticing. But what you can’t see can actually be dangerous. Grease build-up in the filters or air ducts is not only bad for air quality; it also significantly increases the risk of fire.
By cleaning the grease filters weekly and cleaning the interior and air ducts monthly, you’ll ensure the extractor continues to work at its best. What’s more, the kitchen will smell fresher and the appliance will remain in top condition for longer.
2. Freezer and cold store maintenance
Ice build-up in a freezer or cold store may seem harmless, but it is often a sign that the appliance is having to work too hard. This happens, for example, when the condenser – the part that dissipates heat – is clogged with dust. This reduces efficiency, increases energy consumption and causes ice to form more quickly. That is why it is important to defrost the appliance regularly as soon as ice build-up begins. This allows the system to function correctly and energy-efficiently once again.
By cleaning the condenser’s dust filter monthly with a soft brush or hoover, you help the appliance dissipate heat efficiently. The door seals also need attention: if they are damaged or do not close properly, warm air will enter. The result? Even more ice.
3. Dishwasher maintenance
A professional dishwasher often runs dozens of times a day. But if filters become blocked or spray arms do not work properly, it is not only the crockery that suffers; the appliance itself also wears out more quickly.
Daily cleaning is essential. Remove the filters and rinse them thoroughly. Check that the spray arms can rotate freely and are clean. Using the correct amount of detergent is crucial: too much can damage parts, whilst too little is ineffective.
Also watch out for limescale build-up. Limescale is one of the main causes of wear and tear in dishwashers. Hard tap water leads to limescale build-up, which has a negative impact on washing results. But more importantly, limescale in the boiler or the appliance’s pipes leads to increased energy consumption and significantly raises the risk of breakdowns. That is why it is important to actively manage water hardness in the kitchen, either via a water softener fitted to the appliance itself or a central water softener on the incoming mains water supply.
4. Combi oven maintenance
A combi-oven is an indispensable piece of kit in a professional kitchen, but intensive use requires regular maintenance to ensure optimum performance and prevent breakdowns.
Water hardness is also a critical factor here. Water that is too hard causes limescale build-up in the oven’s boiler, pipes and steam generator. This not only leads to higher energy consumption, but also increases the risk of breakdowns and costly repairs. Just as with dishwashers, we recommend using a water softening filter fitted to the appliance or a centralised water softener on the mains supply. Limescale is the cause of no less than 60 per cent of the faults in combi-ovens that we identify during repairs.
Cleaning the oven chamber daily is essential for hygiene and to maintain the oven. To do this, use the oven’s automatic cleaning programme, in combination with the correct cleaning products. Always follow the manufacturer’s instructions regarding dosage and programme selection.
It is also important to check the door seals regularly for cracks, dirt or wear and tear. A damaged or dirty seal will no longer seal the oven door properly, which can lead to heat loss, steam leaks and reduced oven performance.
5. Maintenance of the blast chiller
Blast chillers are essential for rapidly cooling hot dishes and thus ensuring food safety. However, if the appliance is dirty, its cooling capacity decreases and it takes longer for dishes to reach a safe temperature.
It is important to clean the interior thoroughly after every use. However, the condenser – the part that removes heat from the appliance – also requires attention. This component is usually located at the bottom or rear of the appliance, often behind a grille. If dust accumulates there, the heat cannot escape properly, causing the blast chiller to work harder and cool less efficiently.
By cleaning the condenser monthly with a soft brush or a hoover, you can prevent the unit from overheating or using too much energy. A small effort with a big impact.
6. Maintenance of induction hobs and gas hobs
Cookers, particularly gas models, can suffer from grease build-up and blockages in the burners. This leads to erratic flames, poor combustion and even dangerous situations. With induction hobs, dirt residues can interfere with the temperature control.
Clean the surface after every use, but also take a quick look under the pan supports or inside the burners once a week. A simple check with a brush or a needle can prevent a lot of trouble.
7. Maintenance of the refrigerated workbench
A refrigerated workbench serves as both a worktop and a cooling unit. This means there is twice the risk of contamination or technical faults if maintenance is neglected.
You should therefore clean the interior and the rubber seals weekly, and clean the dust filter monthly. An overheated compressor is a classic consequence of neglected maintenance and a typically costly repair.
Want to keep your commercial kitchen in top condition? Maintenance is key!
What has been proven time and time again? Minor maintenance makes a big difference. By incorporating simple daily and weekly checks and cleaning routines, you increase the reliability of your kitchen and avoid unexpected technical interventions that often cost a lot of time and money.
Such a maintenance routine doesn’t have to be time-consuming at all. With a clear schedule displayed in a visible place in the kitchen, every member of staff knows what needs to be done and when. That way, prevention becomes a natural part of your operations.
Do you want to be sure of a thorough inspection, or does your team lack the time or technical expertise?
D&L Concepts supports care organisations, schools, public sector organisations and other businesses with tailored maintenance, regular inspections and professional advice.