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| Gourmets Get Ready for Induction Cooking |
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Get ready, a cooking revolution is at the kitchen door. What the cell phone did for the telecommunication industry, induction cooking is now doing for the food industry. While the technology has been around for decades, in recent years it has been greatly improved upon, already taking hold in Europe and Japan. There can be no doubt that magnetic induction promises to be the most attractive cooking option on the market. In this article we will discuss how induction cooking works, how it differs from electric and gas stovetops, and explain the advantages and disadvantages of the new technology.
Up until now, there have been two basic methods of cooking food. Both methods follow the same basic principles. In the chemical method, a combustible material鈥攕uch as wood, coal, or gas鈥攊s burned to generate heat; while the electrical method accomplishes the same thing by running a current through a coil, or more recently, a halogen-filled bulb. (A third, oven-only option for generating heat needed for cooking is microwaving, which generates the heat within the food itself.) Magnetic induction is a completely different technology.
A crash course in basic physics explains how it works. When a conductor is placed in the presence of a changing magnetic field, electricity is produced in the conductor. The result is an electromagnet. In induction cooking, an electromagnet is placed under the cooking surface. When turned on, an alternating current runs through the electromagnet, producing a magnetic field. A large metal object on the surface will pick up the current and generate heat. Voila! Now we鈥檙e cooking!
The biggest difference between induction cooking and its counterparts is where the heat is generated. Gas and electric stovetops produce heat on a burner. The heat is then transferred, more or less efficiently, to a cooking vessel and its contents. In contrast, induction cook tops generate heat in the v[1] [2] [3] 下一页 更多英语知识学习请访问:英语学习
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