Here you can learn more about dishwashing. Below you will find a complete guide of the dishwashing process, dishwashing equipment, restaurant dishwashers and different factors that effect the dishwashing performance. By knowing how to properly wash, you can get better dishwashing results while reducing the consumption of chemicals, water and energy.
Whether it is cutlery, glasses and plates that your customers use in your restuarant or if it is kitchen utensils and the equipment that you use in the kitchen, it is important that they are clean. By clean we mean clean from allergens, harmful microorganisms and from the chemicals used in restaurant kitchens daily.
On this page we have gathered information about dishwashing which can help you get a better understanding of dishwashing equipment, the dishwashing process, the factors that are needed for efficient cleaning and you also get many tips that you can take with you to your business.
By using the right technique you can save time, energy and money. Below you will find easy tips to bring to your kitchen.
Check that the dishwasher is clean.
Put back loose parts.
Check that there are enough DISH WASHING DETEGENTS and DRYING AGENTS.
Fill up the water tank and check the temperatures.
Dish temperature: 60°C
Rinse temperature: 85°C
Plates, glasses and cutlery should be sorted separately.
Scrape off leftovers and thoroughly rinse cutlery and plates.
The cutlery should be soaked and WASHED TWICE, first lying down the standing upright.
Pre-wash the dish at a temperature of max. 35°C.
If you have too high a temperature when you pre-wash, you risk that starch burn into the dishes.
The dishwasher must be cleaned thoroughly every night.
Do NOT use foaming agents.
If something is not working correct, we are quickly there to assist you. However, there are a number of things you can check easily if you experience that your dishes is not clean enough.
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Sinner's circle is a model that illustrates how the factors chemistry, temperature, mechanics and time affect the washing result.
To get the most effective results, a good combination of the different factors is needed. The model is based on the principle that in order for you to get an good result, the circle must be complete. If you reduce one of the different factors, you must compensate by increasing one of the other factors to maintain the washing result. For example, if you do not achieve the recommended water temperature, you will need to increase the dose of chemicals and / or extend the washing time to get an a good washing result.
Below we will go through the various factors and how they affect the washing result.
In order to get a good washing result, two types of chemical are required: Machine Dish Washing detergent and drying agent.
The task of the of the dish washing detergents is to:
Machine Dish Washing Detergents is available in several different forms, all of which have different properties - solid, liquid, powder or granulate. If you want to know more about our different types of machine dishwashing detergents, we recommend that you check out this page - Click here.
Drying agents comes in liquid form and adds the following to the process:
The washing process consists of several different stages. At the beginning of the washing process, the pre-wash, it is important that the temperature is not too high. If the temperature is too high, you risk protein and starch solidifying and getting stuck in the dishes. Therefore, pre-washing should be done in lukewarm water.
The temperature is determined by a combination of detergent and time. The temperature should be warm enough to dissolve the detergent and ensure that food and fats are washed away. Our recommendations are that the washing temperature should be above 60°C at sometime during the washing process.
The final rinse should have a temperature of between 80°C and 90°C. The temperature should be high enough to kill off bacteria and microorganisms. The high temperature also helps to speed up the drying process. We do not recommend using the temperature above 90°C, because then you risk a lot of steam formation that can result in high humidity in your kitchen.
Below you can see the temperatures we recommend:
Below you see an illustration of the different stages in a Conveyor Dishwasher and what temperatures each zone should have according to our recommendations:
The mechanics in the dish process is the work of the dishwasher. To provide your dishwasher with good conditions for delivering good washing results, you can do the following:
CLEAN CLEANING THE DISC MACHINE
A clean dishwasher results in better washing results. Therefore, it is important to thoroughly clean the dishwasher at least once a day.
In the daily cleaning, you should review the following:
PLACE THE DISHES CORRECTLY
By stacking the dishes correctly and using the right dish and flatware racks, you can simplify the work of the dishwasher.
TIP! When washing dishes, cutting boards and other large dishes in Conveyor Dishwasher, place the dishes against you. By doing this you reduce the risk that the washing water from different washing processes to end up in the wrong water tank.
The time in the washing process is how long the washing is in progress. What determines the washing time is, as we also described above, a combination of detergent and temperatures. Dishwashers today often have dish programs where the dishwashing time is adapted to the type of dishware to be washed, cleaning chemicals and temperature.
We recommend that you follow your dishwasher instructions when washing. Choose a dishwashing program that is tailored to the dishware that you should wash for best results.
The right washing equipment makes the job in the kitchen much easier. It helps the staff in their daily work and helps them to do a better job and be more efficient. By washing dishes, cutlery and glasses in the right dish and flatware racks and using the right accessories, you can ensure fast and optimal dishing while reducing the risk of glass shattering. By washing dishes the correct wat you can also reduce energy costs and costs for chemicals, as the dishes will not need to be washed over and over again.
The right equipment contributes to:
The standard measure for Dish and Flatware Racks is 50x50 cm and the come in number of different models adapted for different types of purposes. Below, we will go through various Dish and Flatware Racks and toher practical accessories.
Flatware racks for cutlery and flatware have a fine-meshed bottom construction that prevents the cutlery from falling through. Smaller flatware rack with compartments can be added for better dish result.
Glass Racks have a large-meshed bottom construction to be used for cleaning glassware. Rack tilts can be added that both minimize the risk of water being left in the feet of the glass and to minimize the risk of glass shattering.
Peg Racks are intended for plates and bowls. Peg racks have a large-meshed bottom construction and the pegs help the dish to stand upright. The same racks back can be used for both flat and deep plates.
Service Racks is a dish rack with one low side. The service rack are ideal for self-catering and staff restaurants where the guests can more easily access the glass / cups.
Small flatware rack with compartments is used so that cutlery can be washed standing upright. Fill the compartmens by placing the handles on the cutlery downwards and then place the box in a big sized flatware rack.
Rack Extenders can be used for washing high or delicate glasses and adds extra stability. The frame is 50 cm high and stackable, which means that you can place several rack extanders on top of each other to add hight. Rack Extenders can be used with compartment dividers.
Compartment inserts help to protect tall and delicate glasses when washing. Compartment inserts for glass racks are available in several different models that are placed inside glass racks. The different models suits different types of glass. In our range you will find compartment inserts from 16 up to 49 glasses.
A basket tilt is a separate frame that is placed on top of the washing rack before it is placed in the dishwasher. The slope that the frame creates minimizes water remaining in the feet of the glass and reduces the risk of damaged feet and other types of damage to the glass.
There is a big difference between professional commercial dishwashers for restaurants and catering business compared to traditional household dishwashers. Washing pots, crockery and glasses in restaurants and catering business must be done quickly and efficiently because of the high serving pace. Some programs in commercial dishwashers can be as short as 30 seconds.
Ordinary household dishwashers usually do not have enough capacity and the washing cycle is too long to be effective for a restaurant operation.
In the market there are mainly four different types of ommercial dishwashers:
Under Counter Dishwashers counters are smaller dishwashers that do not take up much space. This makes them popular for smaller cafes, bars, restaurants, etc. The disadvantage of this type of machine is the smaller volume of dishes that they can handle and they are less ergonomic to work with because dish racks must be lifted in and out of the dishwasher.
Rack dishwashers are the most common dishwasher type in restaurants and catering. The dishwasher types are usally opened by lifting the top half and then you slide in the dish rack.
Rack dishwashers usually have two steps in the washing process: manual pre-washing and then chemical cleaning and rinsing in one. The compact size make the type adaptable to different types of kitchen enivorments.
Conveyor Dishwashers is a large types of dishwasher that comes in severel different sizes and models. This dishwasher type has a large capacity and is found in large hotel kitchens, school kitchens and larger restaurants where you serve over 400 servings a day. Conveyor dishwashers are often fully automated and the washing process runs on a conveyor belt through the different zones of the dishwasher.
The different zones in a conveyor dishwashers are: pre-rinse, pre-wash, chemical dish and final rinse.
Heavy Duty dishwashers are often used for cleaning large restaurant equipment such as pans, pans, canteens, pots, grill grills, trays, containers, etc. Dishwashers can save time and effort in catering kitchens and restaurants as time is not needed to scrub and soak dishes.
Heavy Duty dishwashers often use a combination of water, granules and dishwashing agents which together provide a good result.
Water hardness is a factor that can play a major role on the dish result. Water hardness is a measure that indicates how much minerals the water contains. The minerals that are measured are mainly calcium and magnesium ions.
Hard water has a high content of minerals while soft water has a low content of minerals. The unit of measure for water hardness is in Sweden °dH, which is called German hardness degrees (degree deutscher Härte). 1°dH means 10mg of lime per liter of water.
WATER HARDNESS IN SWEDEN
In Sweden we have the following division of water hardness, see map.
0 - 6 °dH = Soft
7 - 13 °dH = Medium hard
14 - 20 °dH = Hard
WHAT EFFECT WATER HARDNESS FOR THE DISHWASHING PROCESS?
In regions with hard and medium hard water, there are a higher risk of limescale due to the higher lime content in the water. This can affect the dishwashing result and often you beed a higher dose of detergent in areas with hard to medium-hard water. To prevent limescale, we recommend using a chemical that breaks down and prevents limescale. In Tingstad's range, it is called Antikalk. If you live in a region with hard water, we recommend that you use Antikalk detergent.
In areas with soft water, you have good conditions for getting a good dishwashing result. However, water can also be too soft. In to soft water, foam is more easily formed. This can sometimes occur when the water hardness is between 0 - 4 °dH and then it may be necessary to adjust the dosage of chemicals to correct this.
If you feel insecure, you can always contact our dish technicians who can help you measure what degree of water hardness you have in your area.
The pH scale is graded from 0-14, where 7 is neutral. Values below 6.5 are reported as acidic and values above 7.5 are reported as basic or alkaline. It is important to have about the pH scale in the washroom because acidic and basic agents can be very strong and corrosive. Therefore, you should use protective equipment such as protective gloves and apron when working with chemicals in the washroom.
According to the Work Environment Act, employers must ensure that there they are prepared for emergencies by having procedures and First Aid equipment adapted to the risks that exist in the business. This means that you should have the right protective equipment close at hand based on potential risks that may arise. Employers also have the obligation to mark out the protective equipment with clear signs and ensure that it is easily accessible to the staff.
The pH value of a products is described in the product description and / or in the product safety data sheets that you find on the product page. Be sure to follow the instructions regarding any dosage.
In the washroom you come into contact with many different substances which in some cases can be dangerous if they are not handled correctly.
In order for you to be aware of the dangers that the use of various means can entail, we have collected various danger symbols below with explanations.
Our chemicals have symbols marked on the packaging.
Flammable – ignites easily
Emits flammable vapors at temperatures below 60°C.
Corrosion
May cause serious eye injuries and should not be ingested or make contact with skin.
Acute Toxic
Dangerous to eat, drink, inhale or get on the skin.
Explosive
Environmental Hazard
Can seriously damage the environment in the long/short term. May not be released into nature in any way.
Oxidizing
May react violently with other substances and lead to ignition.
Health Hazard
Can damage reproduction capacity, lead to mutations, cancer or otherwise be toxic.
Machine detergent is a strong chemical and can cause serious damages to the eyes if it is not handled properly. A good way to minimize risk is to use eye protection such as goggles when replacing the machine detergent in its holder. It is also very good to wear gloves to protect your hands.
If an accident should occur, it is important to have an updated and well-functioning eye shower station in the washroom to quickly flush your eyes. Doctors should always be contacted in case of any accident.
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