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12 the tribune thursday mar 20 1975 electronic cooking microwave ovens do it faster cooler and often better most good inventions like nylon cellulose tape and the zipper are instant successes others like the wankel engine the 10speed bicycle and the microwave oven have to wait for their time to come a microwave oven installed in a vancouver home nearly 25 years ago made local headlines for its ability to cook a roast in 30 minutes and ham burgers in 3 with nothing more than radio waves to supply the heat it worked fine and was a great conversation piece but the price tag of 51500 probably helped dampen consumer in terest over the next 20 years or so the microwave oven was improved in size ef ficiency safety and price and soon became a popular appliance in cafeterias and short- order restaurants there are probably- few canadians who havent eaten a meat pie or hot danish that was warmed up before their eyes in a few seconds in a microwave oven and now this science fiction appliance has suddenly become one of the hottest new products on the home scene its not going to replace the conventional oven but its proved itself to be a very practical and useful addition to any kitchen the latest models look like portable tv sets and are just as easy to handle they plug into any grounded 115- volt outlet and can be used anywhere in the house or outside it for that matter they give off very little heat and use about l10th as much electricity as a regular oven doing the same job but how do they really work microwaves are a form of radio frequency energy originally developed for radar the energy in these waves is normally dissipated over long distances but in a microwave oven it is confined within the cooking cavity molecules of water in the food placed inside this area absorb the microwave energy and vibrate at an extremely rapid rate producing heat a damp cloth will be similarly heated in a microwave oven but a dry one is unaffected metal reflects these waves so you cant use metal containers in a microwavenoven food can be placed on or in glass ceramic paper heavy cardboard and most dishwashersafe plastics bacon can be fried on a paper towel for instance and takehome food can be heated up in its carton the important dif ference between a microwave oven and a conventional oven is that the heat is produced inside the food itself the oven and the air inside it is only heated by the food and remains much cooler than a conventional oven because the heat is produced inside the food it cooks in about a quarter of the time it would normally take and no time at all is required for preheating the oven cooking time not tem perature is the variable factor in a microwave oven and this depends on three things the foods starting temperature volume and density 1 as with a con ventional oven food from a refrigerator takes longer to cook than food at room temperature 2 there is only so much energy available in a microwave oven so the more food there is in it the longer it will take to cook one baked potato may take 4 minutes while three potatoes may take 9 3 the denser the food the longer it takes for the heat to travel through it thus a im pound piece of meat will take longer to cook than a uipound loaf of banana bread you can roast bake poach fry boil and broil in a microwave oven but there are limitations as well as advantages souffles popovers- and angel food cake cook too fast and dont set properly poultry fish and white meats cook beautifully beef and other red meats turn out very nicely but they dont brown quite as well as we are accustomed to and only very thick pieces can be cooked rare steaks are better done on a conventional grill some manufacturers now provide special browning trays that can be used to sear such items as steaks and chops made of a ceramic material with a metallic coating that heats up the browning tray is preheated in the microwave oven before the food is put in fresh or frozen vegetables can be cooked in their serving dish with little or no added water and have far more flavor and color than ordinary boiled vegetables corn on the cob cooks in its husk in 3 or 4 minutes eggs can be poached or scrambled but not fried or cooked in their shells which might explode from the internal steam pressure cookies and cakes that dont need browning can be baked in minutes in a- microwave oven break and rolls can be heated in seconds but not baked again because they wont brown properly pastry cooks beautifully but doesnt brown frozen foods can be thawed very quickly in a microwave oven a pound of frozen ground beef can be ready for hamburgers in 15 minutes and a frozen turkey that would take 23 days to thaw in the refrigerator can be tslojdttfljst nvcajtid the range that washes dishes itc am nwcm 21 permaclean continuous its an oven cleaning o attractive dark glass door closeddoor smokeless broiling safe eyelevel controls interior lights a cooktop lifetime guaranteed perma coil elements solid cfirome steel burner bowls recessed top contains spillovers for easy cleanups a dishwasher randomloading convenience softfood disposer eliminates prennsing twctspray arms with direct water supply rollout baskets sixbutton wash selections with hygienic cycles 2nd rmsenhold for later washing only save s3i0 j sce price 949 modern maids 30 wide goodlookfngt cooknclean centre available as a hiiittin brices furniture barn don mills rd 5 mi north of newmarket 4784175 ready to cook in less than an hour tv dinners can be cooked in 7 minutes the shallow aluminum foil tray is permissible in most models because the food need only be warmed form the top until the microwave oven came along it took almost as long to heat up meat pies canned casseroles and other convenience foods as it would take to prepare them now they can be headedin their serving dishes in a couple of minutes there are any number of handy tricks that can be done with a microwave oven ice cream that is too hard to serve can be softened in its carton baby bottles can be warmed in seconds damp cloths can ibe quickly heated for hot compresses bread and rolls can be warmed and freshened in less than a minute fruit can be canned directly in the preserving jars and a surprisingly wide range of dishes can be quickly cooked from scratch in a microwave oven here is a small selection sole 9 minutes chicken stew with dumplings 39 minutes lasagna 15 minutes beef stroganoff 8 minutes stuffed pork tenderloin 48 minutes spareribs 30 minutes cherry cheesecake 9 minutes what about safety there was a flurry of concern in the us a few years ago about the possible radiation hazard of microwave ovens but tests conducted by the radiation protection bureau of health and welfare canada have not supported those fears microwave radiation they point out does not produce radioactivity and its effect is not cumulative like xrays there is no record in canada of any ill effects caused by exposure to microwaves the microwave ovens sold in canada are manufactured to us government regulations at present the most stringent in the world the ovens must also pass canadian standards association tests for electrical and radiation safety as well as em- mission standards set by the radiation protection bureau of health and welfare canada which are expected to be made public by the time this article is published regulations include as many as three interlocks to prevent the oven being operated when the door is open with these its quite practical to open the door in order to stir turn base or otherwise attend to the food all things considered it is our belief that a microwave oven can be a very useful practical and efficient kitchen appliance if you have little time for cooking or your lifestyle calls for a lot of quick snacks for family and guests its up to you to decide if these considerable advantages are worth the 400 to 650 price range hm onequarter the time twice the fun of cooking the micromaid oven by 3ve02dbrlsr tslajitd thelargest capacity youll find 2speed timer to 28 mins free gift certificate with every micro waveovenatregpricej ftp wjdtn x automatic defroster deluxe 168page cookbook 2 qt baking dish brices furniture barn don mills rd 5 mi north of newmarket 4784175 ljmcgrawedison of canada limited simplicity division 225 pihebush road cambridge ontario n3c 2w2 s