Microwave ovens (often just
called microwaves) are kitchen appliances that utilize microwave
radiation to cook or heat food and drinks. The microwaves, always
emitted from a magnetron, excites water, fats, oils and some other
molecules to heat the food or drink. But where was the microwave oven
invented? This article will answer just that question, and also list
three interesting facts about microwave ovens.
Where was the Microwave Oven Invented
Cooking food with microwaves was accidentally discovered by Percy Spencer while he was building magnetrons for radar sets at the Raytheon Company (an American defence contractor). It was invented Waltham, Massachusetts. Spencer discovered microwaves cooked food when a peanut chocolate bar started to melt. He was then able to cook popcorn and an egg, which exploded in his face! In 1947, the Raytheon Company marketed the first microwave oven called the Radarange which sold for $5000 each. They weighed 700 pounds (340kg) and consumed 3000 watts, three times more than most microwave ovens today. In the 50’s and 60’s, microwave ovens did not sell very well. Only in the early 70’s did microwave ovens begin to sell like hot cakes! In 1970, 40,000 microwaves were sold. Only five years later, 1 million ovens were sold! Now, microwave ovens are found in nearly every kitchen and are very commonly used to reheat food or make ‘TV dinners’. Now you know who, when and where the microwave oven was invented. Now let’s look at three interesting facts about microwaves.
Cooking food with microwaves was accidentally discovered by Percy Spencer while he was building magnetrons for radar sets at the Raytheon Company (an American defence contractor). It was invented Waltham, Massachusetts. Spencer discovered microwaves cooked food when a peanut chocolate bar started to melt. He was then able to cook popcorn and an egg, which exploded in his face! In 1947, the Raytheon Company marketed the first microwave oven called the Radarange which sold for $5000 each. They weighed 700 pounds (340kg) and consumed 3000 watts, three times more than most microwave ovens today. In the 50’s and 60’s, microwave ovens did not sell very well. Only in the early 70’s did microwave ovens begin to sell like hot cakes! In 1970, 40,000 microwaves were sold. Only five years later, 1 million ovens were sold! Now, microwave ovens are found in nearly every kitchen and are very commonly used to reheat food or make ‘TV dinners’. Now you know who, when and where the microwave oven was invented. Now let’s look at three interesting facts about microwaves.
Three Interesting Facts about Microwave Ovens
Fact 1: Professional chefs rarely use microwave ovens, because many flavour-enhancing reactions (such as browning and caramelization) cannot take place at the high temperatures.
Fact 1: Professional chefs rarely use microwave ovens, because many flavour-enhancing reactions (such as browning and caramelization) cannot take place at the high temperatures.
Fact 2: As food is heated for
such a short time in a microwave oven, it is often cooked unevenly and
bacteria may not be killed when reheating food.
Fact 3: Research has determined
that microwave ovens are very unlikely to cause cancer. This is because
microwaves are non-ionizing. It is ionizing radiation (like X-rays and
ultraviolet light) that may cause cancer.
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