The Working Of Microwave Oven
Microwave radiations are the basic tool applied by microwave ovens or microwaves to cook or heat the desired food stuff. The scientific formula used to achieve this process is simple.
The microwave radiations usually are emitted by magnetrons. The polarized molecules such as oil, water, fat and etc., within the respective food stuff are excited to produce heat. The uniform excitation leads to the simultaneous and complete heating of the food stuff. Heating food quickly and efficiently has been epitomized by microwaves. The art of food preparation has been revolutionized by microwave ovens since their inception into the market in the 1970s.
First introduced to the world by Percy Spencer, while in the midst of building magnetrons for radar sets, microwave ovens have since then taken the world by storm. The microwave oven cooked its first food as popcorn and later came the egg.
Raytheon, the company for which Spencer had been working on with the radar sets and had discovered the microwave phenomenon, filed a patent on 8th October, 1945. They came out with the first official microwave oven, the Radarrange. It was huge, consuming almost 3000 watts and weighing almost 340 kg. Later on commercial models were introduced that consumed about 1600 watts and sold for around $2000 to $3000. The first popular and home model was produced by Raytheon again. The countertop Radarrange in 1967 was priced at $495 and was the initiators of the popular microwave oven models in use today.
By 1975, sales volumes for microwave ovens went up to 1 million, but were less than Japan. Here cheaper building methods led to extensive market penetration for the home models of microwave ovens. The rapid decline in the price of the microprocessors with the arrival of the technological revolution in the 1980s led to microwave ovens being a regular fixture in all US households as well as in the rest of the world. Today as 90% of the US households own a microwave oven, the Chinese firm Galanz is the biggest player in the microwave oven market, accounting for up to 40% of the global microwave oven market.
The microwave actually consists of these constituents: high voltage transformer, the source path of energy to the magnetron; cavity magnetron; magnetron-control circuit along with a microcontroller; waveguide; cooking chamber for the food stuff to be placed in.
Microwaves cook food from the outside itself, contrary to popular belief that food is cooked `inside out` here. Microwaves are absorbed by the food stuff as from any other conventional heat sources. The penetrative power of microwaves is the only differentiating factor here. They have several power levels to choose from that allow the depth and extent of heating that the food stuff is assumed to be supposed to undergo. Convection ovens have nowadays gained popularity. These are a mix of standard microwave and a convection oven, allowing food to be cooked yet be crispy and brown as in convection ovens.
Microwave ovens are usually used for time efficiency and yet quality cooking in households as well as industrial applications. Even though microwave radiations are not considered injurious to health and are better than conventionally cooked food, there are still security issues with the conventional microwave oven. At times, liquids and improper heating or faults with the magnetron tube may cause bursts and resultant burns. Some also have issues with being exposed to microwave radiations.
But apart from all these factors, microwaves are not only safer than normal cooking methods, the food cooked by them is considered healthier too. And hence, the popularity of the microwave oven has not dwindled but is only soaring upwards with the progression of time.
About the Author
This article can also be accessed in portuguese from the Article section of page www.polomercantil.com.br/eletrodomestico.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
Is it safe to microwave egg yolk?
Our stove is broken for a while, but our convection microwave still works, so would it be safe to microwave just the egg yolk and egg white, no shell?
yes it is safe but... it will taste gross it is better to cook it on the stove. so it is only a good idea to microwave if you want bad tasting egg yolks hope that helps (:
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3 Ways to Sneak More Vegetables Into your Diet by Alex Conde
I was always a picky eater as a child. As an adult, I'm still not a big fan of many vegetables, but I do recognize that they are a necessary part of staying healthy.
Over the years, I've developed a few tricks for ensuring that I eat my required amount of vegetables each day. In fact, when I started to make these meals, I realized that spinach was one of my favorite dishes! It could be snuck into everything! Suddenly, I went from a guy who rarely ate vegetables to a guy who rarely doesn't have spinach and other vegetables in his fridge.
Here are three of the best ones that you can steal for any picky adult or child that you know.
1. Tacos: Taco spice is amazing in that it's strong enough to cover over many flavors, but not so strong that it burns the mouth. I find tacos are an incredible way to fit leafy greens into your diet. If you dice up the leafy greens and cook them with the taco meat, you'll find that they take on the taste of the taco spice. I typically fit at least 3-4 cups of diced spinach in with my average taco cooking.
2. Pasta: Pasta sauce is another brilliant food for hiding things in. It's a savoury food that disguises other flavors (or overpowers them). I've found that if you cut them up to a small size and cook them with the noodles, you can easily throw in carrots and broccoli. As a bonus, diced greens like spinach work well in this meal too.
3. Egg Bowls: My sister-in-law taught me the trick of making eggs in the microwave. It's not really a trick though, as it's really quite simple. I found that you can build on that trick by dicing up some leafy greens into a bowl, then throw in some eggs and mix it around. If you microwave on high for a few minutes, you'll have yourself scrambled eggs in a bowl. Then, you just put some ketchup on top and no one will ever taste the veggies hidden inside!
Three simple meals that are easy to cook and serve a number of people, but hidden inside each is a big chunk of your daily recommended vegetable intake! It's amazing, but it really can be that easy.
For more food talk, you can check out my current happiness experiment where I am eating paleo.
About the Author
Alex writes about Happiness Experiments, such as the Happy Thoughts List experiment on his site Searching for Happy.