An Analysis Of Microwave Ovens English Language Essay

An Analysis Of vaporize oven Ovens English Language try vaporize oven is a kitchen appliance which throws diet development micro-cook nix. nuke oven is wide awake and efficient equipment beca physical exercise it transfers heat energy directly to the molecules inside aliments. Micro fluctuate is a form of electromagnetic radiation which is very close to radio set waves and sunlight. Microwave oven has shortened the cadence to prepargon viands.The history of micro-cook oven began in the era of World War II. It has experienced a lot of changes in advance the present model of the atomise oven oven is formed. Similar to opposite great foundings, the invention of microwave oven happened accidently. In 1945, an Ameri tummy electrical engineer, Dr. Percy Spencer (1894-1970), was carrying reveal experiment with radar equipment, which detects objects by bouncing waves and analyzing the signals it produced. For example, radio waves be use to help ships and broadcastplan es perplex their way round in darkness or poor weather. Dr. Percy Spencer had a bar of coffee berry in his pocket when he was conducting experiment victimization a special kind of vacuum tube called a magnetron. Surprisingly, the chocolate bar in his pocket had melted due to the heat of the magnetron generated. He was curious about the heat generated by the magnetron. Hence, he leaved or so popcorn kernels close to magnetron tube and find it. He watched the popcorn started to s tack to filmherter, damp and pop everywhere. Next day, Dr. Percy Spencer and his partner place an egg near the magnetron tube. They observed that the egg started to shake and quake due to the high raising in temperature create high pressure in the egg. Eventually, the egg exploded and sprinkle the egg yolk all over his partners face.After conducting few experiments, Dr. Percy Spencer came out a scientific conclusion which is microwave energy mint be used to heat items. In 1953, he patented his idea a nd the primary microwave oven was launched. In order to create a high closeness electromagnetic field, he used a coat box which at that place is a tote up of microwave force play in it. The victuals was put into the metal box and so the feed was heated up up quick. The former(a) equipment was large, inefficient and expensive. In 1967, the first household microwave oven was formed and then microwave oven is now become widely used around the world.firstmicro.gifThe Features of Microwave OvenSome of the features of the microwave oven are shown as belowMagnetronWaveguide mechanical planning ProgrammesPower Supplyuntitled1.JPG simmer downing Fan/StirrerTurntable cool Touch DoorChild Lockmicrowave2.jpgInterlockBelow are around of the explanations of the features which assist the microwave oven in readiness fodderAutomatic Cooking ProgrammesUsers are allowed to enter the weight and type of nutriment into the programmes. Then, the oven depart automatically selects the tempe rature and prep time. Below are both(prenominal)what of the pre-set programmes Easy clock oven computer programingThe time of day is displayed by the electronic clock. Besides, the electronic clock in some(prenominal) case acts as a countdown timer to show the end of the timer function. The microwave oven will do the rest after users set the end time, the continuation of cooking together with the functions and temperature of cooking.Numeric keypadCooking time and provide levels are set by using this numeric keypad. It is more well(p)-provided to use compared to a dial.1-minute or 30-second keyThe preset cooking time is extended, maintaining any power level which was chosen. Quick adjustments are also allowed to the old settings by pressing the specific buttons.Power SupplyThe power supply allows users to control the amount of energy wasted. The variable power control enables users to simmer the food at 50% power whereas defrost the food at 30% power. Thus, full power is non used for all purposes to head off energy loss.Cool Touch DoorsThe heat basin be stored in the reflective inner whereas the cool touch door is placed on the international of microwave oven. Protective metal netting is located at the back of the door to avoid microwaves escape to surrounding. The protective metal gauze is also designed for safety purpose.Cooling Fan/StirrerCool air is circulated around the oven to ensure the appliance and nearby furniture are kept cool all the time. Besides, hot air vented from the microwave oven is also cooled. This results in less steam as cooler air is vented into kitchen. It virtually eradicates grease discolouration.MagnetronThe microwaves are generated by magnetron which is the heart of the microwave oven. This strong metal box pr as yetts harmful microwaves from escaping to the surrounding.InterlockThere has a chance for burning if the door of the microwave oven, which is still running, is unmannerlyed. Therefore, the microwave oven sho uld fall by the wayside immediately when the door is opened. The Interlock is designed to ovoid the running of microwave oven if the door is opened.TurntableEqual amount of heat could not be dissipated all over the food in microwave oven resulting some part of food office receive more heat whereas some part of food receive less heat. Turntable is a revolving frappe which is installed into microwave oven to ensure even cooking. The turntable rotates the food so that the food is cooked evenly. It is crucial that having a turntable inside the microwave oven to ensure even cooking. Without this feature, users have to stop the microwave oven several times and turn the food by themselves.Child LockChild lock is the most legitimate child safety feature for microwave oven. Dishes in microwave oven might be very hot. Children might be in the risk if they open the door and touch the dishes. Child lock can be controlled using the key pad on the microwave oven.WaveguideWaveguide is a hollow metal tube which transports the microwave energy into the cooking cavity. rectangular shaped waveguides are used for vast majority of microwave oven. The microwaves energy travel by reflecting form side to side in a zigzag pattern.130411Microwave ovenThe Functions of Microwave OvenHow do microwaves cook food? unsophisticated artwork showing how a microwave oven worksThere are several main parts of a microwave oven. A microwave generator, which is called a magnetron is placed inside the strong metal box. When you start to cook, the power outlet transmits the electricity to the magnetron. Then, a high-powered, 12 cm high-frequency electromagnetic wave is converted by the magnetron. After that, wave guide blasts these waves into food partition. The food is then placed on a turntable which will turn slowly to enable the food to be cooked evenly.The microwaves do not precisely rebound when microwaves reach the food. This concept is same as the radio waves which can tick straight thr ough the walls of buildings. When the microwaves travel through the food, they serve the piddle molecules inside the food vibrate more quickly. The microwave energy which is produced by the magnetron is converted into heat energy of the water molecules. Dry food much(prenominal) as rice and pasta will not cook in the microwave oven without the presence of water. Hence, the heat energy causes the molecules to vibrate more quickly. Besides, the vibrating molecules jibe heat too, the quicker the molecules vibrate, the hotter the food. Thus, the microwaves transfer energy onto molecules in the food and rapidly heating up.Shortcomings of Microwave OvenA coin has two sides and so does any device. A microwave oven too has its own strength and weakness. Like other(a) kitchen appliance, microwaves also have some demerits. Some of the shortcomings of microwave oven are shown as belowUneven CookingThere are chances of the food get over cooked or unevenly cooked. Unevenly cooked may resul t in the hot food being on top and uncooked food at the bottom. The surface of food which exposed to the most microwaves has a course to heat up dissipateder than the insides. Normally, the microwaves have to neglect molecules on the outside in order to excite the molecules inside the food. The thicker the food, the more difficult the microwaves penetrate the food.Specific Utensils are RequiredMicrowave oven need specific utensils to cook food as not all metals and alloy vessels can be used. Some of the materials, such as metal and foil, are tended to reflect microwave energy. Usage of metal utensils in microwave oven is avoided except for some recommended procedures which use metal and foil as outlined in the use and administer manual. The following are the reasons why metal and foil should be avoided in microwave ovenThe efficiency of cooking is largely decreased due to the metal utensils only allow partial penetration of the food by the microwaves.An sparkle between the meta l utensils and the cavity interior can damage the oven if the food is too small to absorb the microwave energy.SuperheatingIt is dangerous to heat fluents as they can be superheated which may lead to explosions. The actual problem happened when this superheated unstable is perturbed. Superheated liquid in conjunction with the agitation are enough to supple troubles. The superheated liquid is able to burst off with the additional force on any disturbance.Risk of Steam BlastsThe tight covering of containers can cause a high risk of steam blasts in the microwaves. As the temperature rise up, the molecules in the container receive more kinetic energy. Thus, the molecules collide each other create higher pressure in the container than outside. When the pressure inside the container exceeds its limitation, it will produce an explosion within the microwave oven.RecommendationsBased on the supra shortcomings listed, the recommendations for above shortcomings are given as belowUneven coo kingFood thermometer can be used to test food in several places to make sure that the food has reached the recommended temperature in order to devour bacteria and other harmful microorganisms which could cause food borne diseases. Moreover, food is position evenly in a covered dish and some liquid is added to promote uniform cooking. If it is possible, large pieces of meat is deboned because bone can affect performance of meat during cooking.Special Utensils are RequiredMicrowave-safe containers and vessels should be used for cooking. The cookware, which specifically manufactured for use in the microwave oven, should be selected during cooking. Utensils which are safe to use typically will be labelled for microwave oven use. Examples of the utensils which are safe to use are heatproof glass, glass-ceramic, oven cooking bags and etc.SuperheatingAvoid heating liquids for more than two minutes. Liquid do not bubble as they reach the boiling point in the microwave oven. Thus, it mig ht get superheated. The superheated liquid only will bubble when it is locomote and something disturbs it. When heating liquids, it is advisable to put a wooden stick in the container in order to prevent super heating of the liquid. After heating, the liquid is placed in the microwave oven for thirty second before pickings it out.Risk of Steam BlastsThe containers of the microwave oven are never covered tightly. The heated containers should not be taken out immediately after cooking from the microwave. This can ensure that the food is cooked properly and the steam is allowed to escape.ConclusionAs all of us cheat, microwave ovens are often be used daily in kitchens, cafeterias, restaurants, snack bars and homes. Today, it is perhaps the most triple-crown electric appliance introduction in the 20th century.In a world where time means money and life is on the fast lane, we do not really have time to wait around much anymore. Everyone wants things to be fast.With the existence of mi crowave oven, we can do quick cooking just with the press of a button. The food can be prepared from the refrigerator to the microwave oven and onto the dining table in a short time.If compared to the gas or electric oven, we do not need to worry about the burner whether it is still being heated after the food is prepared by using microwave oven. Thus, the chance for someone to get burned can be reduced.Microwave oven users are often interested about the issues of potential health hazards from the exposure to microwave radiation leakage. However, with the latest technology advances in door seal design, the leakage of microwave oven has been greatly minimized. Also, as long as the microwave oven is kept clean and ironical in a safe location, it should be perfectly safe to use.We should know that successful microwave cooking depends on understanding the limitations as well as the benefits of this type of cooking. If it is used in a proper way, it can be considered that the microwave oven offers a great, convenient and safe method of food preparation without any harmful effects on consumer safety or nutrition.In conclusion, the microwave oven has come a long way, decreased in height, weight, and price. It has made everyone life easier.