What is the black dirt of the rice cooker heating plate

The normal white aluminum disc will not be dirty, even if it is heated and oxidized, it will become slightly discolored in the future. She's not going to turn black either. You may be something else.

For example, rice is made when other things are heated and turned black. Can you go and wipe it with a damp cloth, wipe it, and see if it gets off? No, scrape it with your fingernails.

If it still doesn't work. With something slightly harder. If you scrape it, you can only use other metal hard objects to hang it.

There may be damage to the surface layer.

This kind of grease that should be the usual is grilled and becomes a layer of dirt, which can be removed frequently, otherwise it will affect the efficiency of heating.

The black dirt of the heating plate of the rice cooker should be due to the oxidation of some metals produced by heating, so there will be some yellowing and black things that cannot be removed.

The only way to do this is to replace the heating plate, because the heating tube is cast inside the aluminum plate.

Causes and overhauls:

1) Rice cooker power socket.

Water or rice soup enters the inside, causing a short circuit. In this case, you can blow dry the inside of the socket and continue to use it.

2) The surface of the rice cooker power socket or plug is carbonized and short-circuited due to long-term use. In this case, the carbonization layer on its surface can be ground off with fine sandpaper and wiped clean with alcohol. Fault phenomenon: the reason for not being able to cook rice and maintenance:

1) The power supply wire is disconnected. with a multimeter.

The ohmic stop checks the power leads.

2) The over-temperature protector is fused. At this point, the resistor can be checked with the ohmic stop of the multimeter. If the resistor is fused, it must be replaced by the current limiting resistor of the same type, and cannot be directly replaced by a wire.

3) Fever. The tube burns out. A rice cooker without an overtemperature protector works for a long time and burns out the heating pipe.

At this time, check the heating element with the ohmic stop of the multimeter, and if it is broken, it must be replaced together with the heating plate. Fault phenomenon: Cause and maintenance of raw rice for cooking:

This failure is usually caused by the weakening of the magnetic force of the permanent magnetic ring in the thermostat. At this time, you can disassemble the thermostat of the rice cooker to check whether the magnetic ring is broken and how strong the suction is. If the permanent magnetic ring is broken, the same model of thermostat must be replaced; If the suction power is reduced, you can adjust the temperature screw on the thermostat for 1 4 turns each time, and adjust it once to try to cook rice.

Fault phenomenon: the cause and maintenance of cooking rice: this fault may be that the normally closed contacts of the insulation switch are sintered and glued together, although the rice has been cooked and the temperature limiter has jumped down, but the insulation switch is still continuing to energize the heating pipe, and the rice will be boiled.

At this point, you can use a knife to separate the contacts and clean the surface of the contacts with fine sandpaper. Fault phenomenon: the reason for not keeping warm after cooking and maintenance:

This fault may be due to a soiled or ablative surface of the normally closed contact of the insulated switch, causing its contacts to contact resistance.

If it is too large, the contact will be closed and the circuit will not be connected, the heating pipe will not be heated, and the rice cooker will not be kept warm. At this time, the contact surface can be cleaned with fine sandpaper and then coated with a layer of tin. If it is still not insulated, the insulation switch can be replaced.

When the heating plate of the rice cooker is originally scrubbed cleanly, the black substance that comes out with a little friction is alumina.

Most rice cooker heating trays are made of cast aluminum, which is a soft and lively metal, and the aluminum dust produced by friction reacts with oxygen in the air almost immediately to form a black substance.

If the heating plate of the rice cooker turns black, you can wipe it with alcohol, take a wet paper towel or rag, dip it in alcohol and wipe the bottom of the rice cooker, the alcohol will decompose the black substance of the heating plate of the rice cooker, and then use a wet rag to wipe the bottom of the heating plate clean.

Generally, it is the residue of carbonized slag after the oil is heated.

These things are metal oxides that are formed after high temperatures.

Reason: The stainless steel pot production process is rough, and the surface passivation treatment is not done. Passivation is the link that forms a protective film on the surface of stainless steel, with which stainless steel is not easy to rust; If the passivation is not done, oxides such as iron and manganese will form on the surface, and these oxides will appear black on the white paper.

There are two situations in which the rice cooker cooks black rice.

The first is because there is less water, and when the heating time is fixed, if the water dries, the rice will definitely be burned directly at the end, and it will paste the pot and turn black, so it is recommended that you increase the amount of water a little.

Second, it is possible that when the rice cooker is used for a long time, the protective coating of the inner tank has fallen off, so when it is heated, the metal material of the inner tank will directly heat the rice, causing the rice to turn black.

Summary. 1. It is the natural reason for rice, which is not dried when it is sunburned, which leads to changes in the internal structure of rice and pigmentation, which causes it to turn black when cooking. 2. It is a man-made reason, some unscrupulous manufacturers, buy moldy rice, in order to obtain violence, old moldy rice and white ash, spices, post-processing, special polishing machine polishing, when the latest rice **, such rice from the appearance, brighter than the general rice, but also more fragrant, when eating will be exposed.

There could be several reasons for this.

1. It is the natural reason of rice, which is not dried when it is sunburned, which leads to the change of the internal structure of the rice, and the pigmentation is precipitated, which causes it to turn black when cooking. 2. It is a man-made reason, some unscrupulous manufacturers, buy rice that makes the ear moldy, in order to obtain violence, old moldy rice and white ash, spices, post-processing, special polishing machine polishing, when the latest rice **, such rice from the appearance, brighter than the general rice, but also more fragrant, when eating will be exposed.

3.Because there is less water, when the heating time is a certain state, if the water dries, it will definitely be scorched in the end, and it will paste the pot, so it will turn black, so it is recommended that you increase the amount of water a little. 4.

It is possible that when the rice cooker is used for a long time, the protective coating of the inner tank has fallen off, and when heated in this way, the metal material of the inner tank will directly heat the rice, causing the rice to turn black.

First of all, it may be that the inner limb of the rice cooker needs to be replaced.

If there is a pot, whether it is made in tea or soup, the taste is superb!

First of all, let's take a look at how the pot is generated, which is caused by the high temperature of the heating plate at the bottom of the rice cooker.

Generally, the price of this rice cooker should not be too high, or the inner liner is not brushed and non-sticky.

As for whether it is good or not, it depends on your own needs and disposable expenses. I can only tell you that the rice cooker that can't afford the pot must have a better steaming effect than the rice cooker with the pot.

When buying a rice cooker, you can observe its parameters, IH heated rice cooker is better than the arc kettle, and the arc kettle is better than the flat bottom kettle

Try to lower the fire, or the program is not well controlled and the heating time is too long.

Under normal circumstances, a coated rice cooker will not stick to the bottom.

Please ask if the coating of the main pot is off, if so, it would be nice to change it...If you don't change it, and you don't stick it, putting some oil will improve.

But it's better to change it......It's pretty cheap now.