The difference between an oven and a microwave oven
1. Different heating principles
The heating principle of an electric oven: energize the resistance wire and heat it up, turning the electrical energy into heat energy. The temperature inside the box is increased, and then the food is baked until it is cooked. This process is from the outside to the inside.
The heating principle of microwave ovens: After power is turned on, the electrical energy becomes microwaves, which are transmitted to the food through the air in the furnace, and then cause every molecule inside the food to undergo thermal motion, thereby making the food hot and mature. The process is from the inside out.
2. Different baking effects
The heating method of the oven will not destroy the original deliciousness of the food, and can also retain the moisture and nutrients contained in the food. Crispy on the outside and tender on the inside, more suitable for Asian tastes. The main function of a microwave oven is to reheat food quickly. During the heating process, the food itself will lose some moisture. Therefore, it is difficult for food cooked in a microwave oven to have all the color, flavor and flavor.
Microwave ovens are mainly used to reheat food quickly, which can save a lot of time. For many office workers, microwave ovens are the best choice. In addition, the microwave recipes provided by Shijun use cooking methods and techniques specifically designed for microwave ovens, and you can also make many delicious dishes. The oven is not suitable for heating food. It usually takes twice as long as a microwave oven and consumes a lot of power. It is just suitable for baking food. It can be used for bread, cakes, pizza, barbecue and many other delicacies. made.
4. Different usage precautions
Microwave ovens do not easily color the surface of food. You can apply seasonings on the surface of the food before cooking to make it dark brown. At the end of heating, leaving the food for a period of time or adding some seasonings to some foods can achieve satisfactory results that cannot be achieved by heating. If the food has a hard skin, it must be peeled off before it can be microwaved.
Before baking any food, the oven needs to be preheated to the specified temperature to meet the baking time on the recipe. It takes about 10 minutes to preheat the oven. If it is not enough, it may not reach the specified temperature. If the oven is preheated and left empty for too long, it may also affect the service life of the oven.
Extended information:
Household ovens are divided into two types: small desktop ovens and built-in ovens.
Desktop Small Oven
The advantage of a desktop oven is that it is very flexible. You can choose ovens with different configurations according to your needs. Due to the difference in quality and configuration, the price ranges from a few hundred yuan to several thousand yuan. etc. Foreign brands are usually more expensive, while domestic products are more cost-effective. Many foreign brands are also OEM in China. It is recommended to choose a model with an "oil-free liner" to make it cleaner for long-term use.
Built-in oven
The other type is the built-in oven, which is the upgrade and ultimate version of the small oven. Because of its large power, fast baking speed, good sealing (usually sealed with rubber gaskets), good heat insulation (three-layer tempered glass heat insulation), and accurate temperature control, it is loved by more and more people. At the same time, due to the pursuit of health from 2007 to 2013, the food in cake shops outside has too many additives. More and more middle-class families have noticed this problem and begun to eat their own baked goods.
Type selection
Simple household electric oven
This is an early product put on the market. Its structure is in a casing made of metal sheets. It is equipped with flaky far-infrared radiation electric heating elements or electric heating wires, and is equipped with a sliding door made of double-layer sheets. It is directly connected to the 220V power supply. The power cannot be adjusted and the temperature cannot be controlled. When baking food, the time can only be controlled based on experience, or It is inconvenient to use and control the heat by turning the power on and off from time to time. If the control is not good, the baked food will be either raw or burnt. In 2013, such products were gradually phased out.
Ordinary household electric oven
It is a common variety on the market in 2013, including automatic temperature adjustment, automatic timing and automatic temperature adjustment and timing products. This type of electric oven is mainly composed of a box, an inner cavity, a heating element, a temperature controller, a timer, and accessories such as power leads, baking sheets, grilling grids, and handles.
The surface of the shell is sprayed with colored amino baking paint, and the inner cavity is removable. The grids on both sides can adjust the height of the baking pan and grilling net as needed. Most furnace doors adopt a spring structure with a high-temperature-resistant tempered glass transparent window in the middle.
Heating elements include metal tubular electric heating elements, opal quartz glass heating elements, and flake far-infrared radiation electric heating elements. The temperature controller on the panel is the control system of the electric oven, and its working status is displayed by red and green indicator lights. The temperature controller uses a bimetallic temperature control element, and the timer is generally mechanical. Some electric ovens also have a power conversion switch, and the surface fire and bottom fire can be controlled separately to obtain different heat levels.
Advanced household electric oven
This type of advanced electric oven was rarely seen in the market in 2013. It is different from ordinary electric ovens in that its structure is more rigorous, its appearance is more beautiful, and its functions are more complete. The shell is made of stainless steel sheet stamping and adopts a three-layer double-cavity structure, which greatly reduces the temperature of the shell. In terms of control, in addition to the functions of an ordinary electric oven, it also has a low-temperature setting of only 36°C, which is dedicated to Yeast fermentation. Equipped with "strong" and "weak" switches for browning to control the temperature fluctuation range and flexibly control the degree of browning of baked goods. In addition, the timer can sound the whistle at the right time to reflect the baking results in time.
Baidu Encyclopedia-Oven