Most often, they start washing the oven only when a lot of dried fat and dirt has accumulated in it, which does not give any pleasure to clean. If you are not a fan of spending hours over the stove, washing away soot, then it is better to immediately buy an oven with an automatic cleaning system. One of the methods uses the principle of catalysis. Let’s consider in detail what catalytic oven cleaning is.
What it is
Cleaning the oven is based on the principle of catalysis – the use of catalysts and temperature to break down substances. In the oven, this is realized by creating an additional layer on the walls in the form of removable plates. The side, back and top surfaces, as well as the fans, are covered with a rough layer of enamel with a special catalyst (copper, cobalt, manganese or cerium dioxide).
The lower part and the door remain without catalytic treatment (clean them by hand), since food drops fall on them during cooking, and the cleaning composition is destroyed by sweet syrups and dairy products.
To start the automatic cleaning process, it is enough to heat the oven to 140-250 °C, that is, the cleaning takes place during cooking. Under the influence of temperature, the fat that gets on the walls reacts with the chemical composition and splits into water and carbohydrates, which can be easily removed by hand with an ordinary sponge. At the same time, it is not necessary to use any detergents, which makes cleaning the equipment much easier.
Pros and cons
Among the advantages of catalytic oven cleaning, the following can be highlighted:
- Safety for people. When performed, the decomposition products do not harm health.
- Economical consumption of electricity and gas, as cleaning takes place during the cooking process.
- Cheaper than pyrolytic models.
- The function is present in gas and electric ovens.
- The service life is 5 years, after which it is necessary to replace the walls of the oven to preserve the properties of the chemical layer with the catalyst. In models with a double-sided coating, it is enough just to fix the part with the other side.
The disadvantages of catalytic cleaning include the following:
- The least effective compared to other cleaning methods.
- Does not exclude manual cleaning of the surface. The lower wall, door, tray, grid and grill must be cleaned separately by your own efforts.
- Sugar and dairy products harm the quality of the enamel, it is necessary to avoid them getting on the walls. Therefore, the surfaces most often affected by these substances (bottom and doors) are not covered with enamel. Therefore, you will have to clean them yourself, using special detergents.
- The expected result is achieved only with constant use, since it will not be possible to get rid of large fat spots at once.
Rules of use
To increase the service life of the oven, you should know a number of rules:
- Despite the catalytic function of self-cleaning, the oven cannot cope with a large amount of grease and dirt. There is a specific volume to remove, which will be removed in one cleaning. Depends on the model. This information can be found in the technical characteristics of the selected oven.
- So that you don’t have to constantly clean the bottom and the door, install protective devices that collect splashes and direct them to the tray, as well as wrap the dish in foil or cook in a kitchen sleeve.
- Frequent or infrequent use of the oven reduces the quality of catalytic cleaning. Do not turn on the oven in idle mode, if you have recently cooked, the consumption of the catalyst will be in vain – this will significantly reduce the service life of the system. Very rare use can cause the formation of a large amount of soot, which the system will not be able to cope with, as well as damage to the walls of the device.
- Shelf life of walls with enamel is 5-7 years with regular use. The cleaning layer can wear off even earlier if you often cook in the oven.
- After each cooking in the oven, clean the walls with a soft damp sponge.
- The applied catalytic coating is prone to damage, which reduces its service life. Therefore, abrasive cleaners, powders, and hard brushes should not be used to remove residual contamination. Only clean water, a sponge or a cloth with a soft surface is allowed. Otherwise, you will scratch the surface, and hard-to-remove soot will form in the place of scratches.
- To start catalytic cleaning, you should heat the oven to a temperature of 140 degrees. In the process, the plaque will collapse, turning into ash. For heavy dirt, it is necessary to heat the oven to the maximum temperature equal to 250 degrees.
- After cooking, clean all surfaces with a moistened soft cloth, sponge or napkin.