When the microwave oven heats food, first, it depends on the power of the microwave oven (different microwave ovens have different power, so try it several times before using it, and the time can be gradually increased. Don't go to the top at once, or it will taste bad); Second, it depends on what the heated food is (vegetables need less time, and meat, especially thick chunks, needs more time); Third, it depends on how much food is heated.
1, rice heating is usually 2-3 minutes (pure rice) or 4-5 minutes (mixed with paella);
2. Vegetable heating usually takes 2-3 minutes;
3, meat heating is generally 3-5 minutes, if it is soup with a vegetable pot.
How to heat leftovers in a microwave oven?
My experience:
1, preparation work
Put the leftovers in a nonmetallic flat plate (not even those in Phnom Penh, and pay special attention not to use enamel, which contains iron), and cover them with special plastic wrap for microwave ovens. Plastic wrap is best not to touch food, at least not to touch fat or oily parts, otherwise it will melt due to high temperature, which is not good for your health. Put it in a flat plate to improve the efficiency of hot dishes.
2. Hot dishes
Because the power of microwave oven is different, the heating effect is also different, such as:
According to the general 8-inch plate, it should be heated to the same temperature as that just cooked, and choose high fire. It takes 1.5-2 minutes to heat vegetarian dishes, 2.5-3 minutes to heat meat dishes and 2-2.5 minutes to heat staple foods.
3. Skills
According to the quantity and shape of the heated food, the time can be appropriately increased or decreased, especially when heating a large number of foods or frozen foods (such as roasted meat and chicken wings, which are prone to freezing), it should be turned frequently to ensure the heating effect, and heating in stages can be considered.
4. Principles and thinking
Because microwave ovens accelerate the movement of liquid molecules in food by emitting microwaves, thus converting microwave energy into heat energy to heat food, if the heated food contains little water or oil (such as hot cakes, bread and other pasta), it is recommended to add water appropriately.
Step 5 test
There is a simple experiment. Put 200ml of water into the microwave oven and heat it for 2 minutes with high fire. If the water is hot but not boiled, it can be heated according to the above data. If the water boils, it means that the power is high, and the time for hot dishes should be shortened appropriately. If the water is only warm, it means that the power is low and the time for cooking is prolonged.
Most of the instructions for microwave ovens have heating time, so you can refer to them.
6. Matters needing attention
Can't be used to heat metal (except for some recipes that need to be wrapped in special tin foil for microwave ovens), otherwise microwave radiation may leak out or damage the microwave oven.
The cooling holes at the top and side of the microwave oven should not be blocked, otherwise the internal temperature of the microwave oven will be too high and damaged.
7, avoid by all means! ! ! Remember! ! !
Microwave ovens can't be used for eggs with tropical shells. Even broken eggs should be pricked with toothpicks, and other things with airtight shells should not be used. At least the opening must be cut.
Can't be used to heat sealed food, such as vacuum-packed cooked food, canned food, drinks, etc. You should unpack the package or at least cut the opening.
When any sealed container or sealed substance is heated by microwave, it is possible to evaporate the water inside and produce steam, because the volume of water in steam state is much larger than that in liquid state, which is very easy to cause explosion and extremely dangerous.
8. By the way, microwave cleaning.
The microwave oven has been used for a long time, and it is easy to have oil and dirt in it, but it can't be washed off with a lot of water. What should I do?
Take 200ml of water, add 5- 10g of other neutral cleaning agents, wash with water flexibly, and heat for about 2 minutes on medium fire. At this time, the microwave oven should be filled with steam, and then wiped with a slightly wet rag, so it is easy to wipe off the dirt.
How long does it take to heat food in the microwave oven?
Microwave heating food depends on the power of the microwave oven and what the heated food is. Third, it depends on how much food is heated.
Rice is usually heated for 2-3 minutes (pure rice) or 4-5 minutes (mixed rice).
Vegetables are usually heated for 2 to 3 minutes.
Meat is usually heated for 3-5 minutes.
Precautions for heating:
Heating time is too long: affecting the quality. If the milk is heated in the microwave oven for too long, the protein in the milk will be affected by high temperature, changing from sol state to gel state, leading to the appearance of precipitate, thus affecting the quality of dairy products. The longer the milk is heated, the higher the temperature, and the more serious the nutrient loss, among which vitamin C is the most serious, followed by lactose.
Avoid heating to preserve nutrition: Professionals have also made it clear that directly heating bagged milk with microwave oven will have a negative impact on human health. If the packaging material is not marked with the words "can be heated by microwave oven", it is not suitable for direct heating by microwave oven.
Use taboos:
Avoid using ordinary plastic containers: first, hot food will deform plastic containers, and second, ordinary plastics will release toxic substances, pollute food and endanger human health. Avoid using metal utensils: because these utensils are iron, aluminum, stainless steel, enamel, etc. When put into the furnace, the microwave oven will generate electric sparks when heated, reflecting microwaves, which will not only damage the furnace body, but also heat food. Avoid using closed containers: when heating liquid, use wide-mouth containers, because the heat generated by food heating in closed containers is not easy to dissipate, which makes the pressure in the containers too high and easily leads to blasting accidents. Avoid bottled food with narrow neck: even if the lid is opened, it will expand due to pressure and cause an explosion. Don't put baby food in a bottle with a half-full lid or the original bottle into the furnace for heating, so as not to break the bottle. Containers with uneven glass products, such as bamboo ware and lacquerware, are not suitable for use in microwave ovens. Porcelain dishes can't be inlaid with honeysuckle. Use a special microwave oven to hold food and put it in the microwave oven for heating.
Avoid overtime heating: food is thawed or heated in the microwave oven. If you forget to take it out, throw it away after more than 2 hours to avoid food poisoning. The heating time of microwave oven depends on the material and dosage, as well as the freshness and water content of food. Because the heating time of various foods is different, it should be shorter when the heating time required for food is uncertain, and the heating time can be increased according to the raw and cooked degree of food after heating. Otherwise, if the time is too long, the food will harden, lose its fragrance, color and taste, and even produce toxins. Adjust the timing and power (temperature) knob according to the food type and cooking requirements, so that you can read the instructions carefully and understand them.
Don't heat the meat until it is half-cooked, and then put it in the microwave oven: because bacteria will still breed in the half-cooked food, it is impossible to kill all the bacteria when you put it in the microwave oven for the second time because the time is too short. Frozen meat must be thawed in the microwave oven before it is heated and cooked.
Don't freeze the meat thawed in the microwave oven: because after the meat thawed in the microwave oven, it has actually heated the outer layer at a low temperature, and bacteria can reproduce at this temperature. Although freezing can prevent its reproduction, it can't kill the living bacteria. If the meat thawed in the microwave oven is frozen in the refrigerator again, it must be heated until it is fully cooked.
Avoid fried food: high-temperature oil will splash and cause fire. In case of accidental fire in the furnace, don't open the door, turn off the power first, and then open the door to cool down after the fire is extinguished.
Avoid putting the micro stove in the bedroom, and be careful not to cover the grille of the cooling window on the microwave oven with objects.
Avoid working in front of the microwave oven for a long time: after turning on the microwave oven, people should stay away from the microwave oven or at least 1 m away from the microwave oven.
Avoid using the same socket with other appliances, and use a socket with a single power supply and a ground wire.
Don't heat the baby's milk in the microwave oven, because it is easy to burn the baby if the milk is heated unevenly. In addition, it will destroy the nutrients of milk.
Avoid drying clothes or boiling hardened nail polish in the microwave oven to avoid fire.
Avoid taking food out of the microwave oven by hand. After heating, containers and lids often accumulate steam to absorb the hot air of food and become very hot. Heat insulating gloves or mats should be used to prevent burns.
It is not allowed to put anhydrous food into the microwave oven to make it work, which will lead to the damage of the microwave oven.
How to heat food in a microwave oven?
Put the food in a plastic bag and tie it slightly to prevent it from being thrown out. Don't help too hard, just stick it a little. Don't let too much air in to prevent the bag from bursting. Then put the food in and adjust the heating time as needed.
According to your usual experience, I hope it will help you.
How to heat rice in a microwave oven?
Put the rice in the container, turn on the microwave oven, put the rice in, turn on the power, set the time and firepower, and start it until the rice is ready.
Note: 1, the container should be glass, ceramic or heat-resistant plastic, of course, it is best to be microwave.
2, firepower and time can be set relatively small, and gradually increase firepower and time. Generally, a bowl of leftovers will heat up in 3-4 minutes. . . .
How to heat food in a microwave oven and how to press buttons.
Is it a smart microwave oven? Different models use it in different ways. Read the instructions carefully. Talk about two ways to use the computer version: the simplest way is to directly press the 1 minute key for a few minutes, such as heating for 2 minutes (a bowl of about 5 inches), putting in food (a ceramic bowl or cooked food on a plate), and then directly press the1minute key twice, and then press "Start" to start. (Just press the Minute and Start buttons, and don't press the others.) A sound will inform you when the heating is over. Another kind of microwave oven is to press the "microwave" button first, then press the time button, and finally press the start button. (In the past, the "microwave" key of microwave oven was not the heating key, but the setting of firepower. Firepower is generally not set, and 100 fire is generally used for heating). If you press the wrong button or want to cancel halfway, you must press Cancel. You can't just open the door. Press Yes twice. Pressing "Cancel" once is the pause button (each microwave oven may be different).
How to heat rice leftovers in microwave oven?
Directly put into a ceramic or glass container for heating. Boil for a long time and it will explode. It is best to cover it with vegetable leaves. Meat and oil are not in good contact with plastic wrap.
How to use microwave oven to heat food correctly
Working principle of microwave oven
From 65438 to 0946, Spencer was a researcher at Raytheon Company in the United States. By chance, he found that the microwave oven melted the candy. Facts have proved that microwave radiation can cause molecular vibration inside food, thus generating heat. 1947, the first microwave oven came out.
As the name implies, microwave ovens use microwaves to cook and cook. Microwave is an electromagnetic wave. The energy of this electromagnetic wave is not only much larger than that of ordinary radio waves, but also has "personality". As soon as the microwave touches the metal, it will reflect, and the metal can't absorb it or conduct it at all. Microwave can pass through insulating materials such as glass, ceramics and plastics, but it will not consume energy. For food containing water, microwave cannot penetrate, but its energy will be absorbed.
Microwave ovens are made by using these characteristics of microwaves. The shell of the microwave oven is made of metal materials such as stainless steel, which can prevent the microwave from escaping from the oven, so as not to affect people's health. Food containers are made of insulating materials. The heart of microwave oven is magnetron. This electron tube, called magnetron, is a microwave generator, which can generate microwaves with a vibration frequency of 2.45 billion times per second. This invisible microwave can penetrate the food to a depth of 5 cm and make the water molecules in the food move with it. Intense exercise produces a lot of heat energy, so the food is cooked. This is the principle of microwave heating. When cooking food with an ordinary stove, heat always gradually enters the food from the outside. When cooking in a microwave oven, the heat directly enters the food, so the cooking speed is 4 to 10 times faster than other stoves, and the thermal efficiency is as high as 80%. At present, the thermal efficiency of other stoves cannot be compared with it.
Because of the short cooking time, microwave oven can keep the vitamins and natural flavor of food well. For example, cooking green peas in a microwave oven can almost keep vitamin C from losing at all. In addition, microwave can also be used for disinfection and sterilization.
When using the microwave oven, be careful not to "burn" in the air, because the energy of the microwave cannot be absorbed when "burning" in the air, which is easy to damage the magnetron. In addition, human tissues contain a lot of water, so it is necessary to open the oven door to extract food after the magnetron stops working.
Basic structure of microwave oven
Basic shape and structure of microwave oven
(1) Safety interlock switch of oven door-ensure that the microwave oven can't work when the oven door is open and can work when the oven door is closed;
(2) Video window-a metal shielding layer, which can observe the cooking situation of food through the grid;
(3) Ventilation-ensure good ventilation during cooking;
(4) turntable support-driving the glass turntable to rotate;
⑤ Glass turntable-the container for holding food is placed on the turntable, and the turntable rotates when heated to make the food cooked evenly;
⑥ Control panel-controls the cooking of each gear;
All landowners oven door switch-press this switch, the oven door opens.
principle of operation
(1) furnace. The furnace cavity is a microwave resonant cavity, which is a space for converting microwave energy into heat energy to heat food. In order to even the food in the heating furnace cavity, there is a special device in the cavity of the microwave oven. The original microwave oven was equipped with a metal fan at the top of the oven cavity, that is, a microwave agitator, to interfere with the propagation of microwaves in the oven cavity, thus making food heating more uniform. At present, a glass turntable driven by a micro-motor is installed at the bottom of the cavity of a microwave oven, and the heated food is placed on the turntable and rotates around the motor shaft together with the turntable, so that it moves relative to the high-frequency electromagnetic field in the oven, thus achieving the purpose of homogenizing the food in the heating furnace. Domestic original automatic lifting turntable, more uniform heating, better cooking effect.
(2) oven door: the oven door is the entrance and exit of food and an important part of the microwave oven cavity. The requirement is very high, that is, the food heating in the furnace cavity can be observed from the outside, and the microwave cannot be leaked. The oven door consists of a metal frame and a glass observation window. There is a metal microporous net in the glass interlayer of the observation window, which can not only see food through it, but also prevent microwave leakage. Because the mesh size of the metal mesh in the glass interlayer is precisely calculated, it can completely block the penetration of microwave.
In order to prevent microwave leakage, the switch system of microwave oven is composed of several safety interlock microswitch devices. If the oven door is not closed properly, the microwave oven won't work. If the microwave oven doesn't work, there will be no microwave leakage.
In order to prevent microwave from leaking from the gap between the oven door and the oven cavity after the oven door is closed, an anti-flow groove structure is installed around the oven door of the microwave oven, or a material capable of absorbing microwave, such as silicone rubber, is installed. ......
How to microwave overnight meals?
Put it in a special container for microwave oven and add a little water. I usually throw it on the rice with my hand, not much, then sprinkle a little in the corner with a spoon and cover it to heat it.
How to heat cold rice in microwave oven?
Use a meager lunch box, cover it, and heat it at medium and high temperature for about 5 minutes.