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Question:

Microwave oven and metal containers?

It says not to use metal container inside the microwaveOr foilsThis create sparks and could cost injuriesHow come some microwave are made of metal all over including inside? Some even have metal racks in itWhy doesn't that affect the operation? Some say that it is programed to emit short range waveIf this is the case, why is it if you lay a thin foil on the very bottom on an all metal microwave; it still generate sparks?

Answer:

Metals are usually good electrical conductors and the most popular material of this type likely to be erroneously placed into a microwave is aluminium in the form of foil and food trays, but silver and steel cutlery is common and any metallic decorative lining on plates alsoTo the microwaves and the magnetron that generates them these materials look like a short circuit and the energy arcs preferentially to the metal surfaceIf the operator of the oven fails to realise their error, then at best they find blackened foil or etched decorative metallic lining or molten aluminium, at worst the magnetron over heats and fails or more likely the temperature cut-outs operate or the protection fuses blowThe thick paint finish or epoxy coating given to inside of the oven effectively insulates the steel from the microwave energy, but severe paint removal can cause similar problemsSteel wire trivets or racks specially made for the use in microwave ovens are made of a high resistance steel alloy and therefore sparking is not a problem, but be careful handling a trivet that been in an oven on full microwave power for more than five minutes because they can get quite hot as they still absorb some of the energyThe worst case of damage that I have ever seen was caused by a stainless steel spoon which not only destroyed the magnetron but before it so melted a hole through the glass turn-table on which it had been placed.
NoThe reason is because they have double layer coats and can stand teperatures up to -25 or -30 degrees farenheight.
No, its not too coldBut I would worry about other animals attacking your dog, even though a mix like that would be pretty tough, I still wouldn't want to risk it.
Huskies love the cold, but if you aren't letting the animal be a part of your family and allow him to sleep inside I don't think you should have him at all.

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