Planning on getting a microwave oven for your kitchen, but not sure entirely about its functions and working? Forget the worries for we are here with everything you want to know before you get your first ever microwave oven. From the working to the effects on types of food you might want to cook inside. So, sit back and read along.
The effect of microwaves depends upon the composition of food. Microwaves excite the liquids in foods more strongly, so something like a fruit pie (with a higher liquid content in the center) will indeed cook from the inside out because the interior has the highest water content. The food that prepared is hot on the inside but mild on the outside. Foods in which the water content is more evenly dispersed, you'll probably notice that they cook from the outside to in just like in a conventional oven. Since they work by supplying energy to water molecules, microwaves also tend to dry food out more than conventional ovens.
The size and shape of the item significantly affect the application of the waves. Microwaves can't penetrate more than two centimeters (about an inch) into food. If you're cooking anything of considerable size (say a joint of meat in a large microwave oven), only the outer layer will be cooked by the microwaves; the interior will be prepared from the outside in by conduction. Fortunately, most of the things people bake in a small microwave oven. The food is cooked unevenly on the outside as well as the inside. Some food cooked evenly on the inside and overcooked on the outside or cooked on the outside and less cooked on the inside.
That is pretty much everything you need to know about microwave ovens before you consider investing in one. It is undoubtedly one of those kitchen appliances that are worth every buck. After having one of these, you are bound to forget the hassle involved in stove top cooking. Due to the variety of food, you can cook, and the ease with which you can do it, getting a microwave oven is a smart investment.
1. What is a Microwave Oven???
Microwave Oven is an appliance that heat and cook’s food by exposing it to microwaves. The main principle of microwaves is to channelize the heat energy into the molecules. Microwaves heat food like the suns radiation. Microwave Oven is an appliance that is used in our day to day life to cook food as it saves time & it is very efficient. It is a substitute to our conventional stove or induction gas. Thermal energy heats the food through the process of dielectric heating. Apart from using microwave ovens for residential purposes, it is also used in industries.2. Theoretical working of a microwave
Electromagnetic radiation transmitted through waves or particles at different frequencies and wavelengths. The electromagnetic spectrum is consists of a broad range of wavelengths. The spectrum is generally separated into seven regions in order of decreasing wavelength and measuring energy and frequency. Electromagnetic spectrum consists of visible light, UV radiation to radio waves. Microwaves have frequencies ranging from about 3 billion cycles per second (3GHz), up to 30 trillion hertz (30 THz) and wavelength of about 30 cms (12 inches) to 3mm (0.12 inches). The microwave oven uses 80% less energy in reheating as compared to a conventional oven.3. Practical working of microwave
The microwave turns electricity into heat. Microwave Oven has a magnetron which converts the energy from a power source to a 12cm (4.7 inches) radio waves, through the magnetron, high-frequency waves Originate. The food is put on a rotating platform so that the food is evenly heated. The microwaves bounce back and forth off the reflective metal walls of the food compartment, just like light bounces off a mirror. When the microwaves reach the food, it is not repelled, it penetrates inside the food. The food molecules vibrate as the waves are passing through the food. Vibrating molecules have heat so, the faster the molecules vibrate, the hotter the food becomes. Thus, the microwaves pass their energy onto the particles in the food, rapidly heating it up.4. Effect of microwave on different types of food!
5. Effect of microwave on shape and size of food!
That is pretty much everything you need to know about microwave ovens before you consider investing in one. It is undoubtedly one of those kitchen appliances that are worth every buck. After having one of these, you are bound to forget the hassle involved in stove top cooking. Due to the variety of food, you can cook, and the ease with which you can do it, getting a microwave oven is a smart investment.
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