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<blockquote data-quote="JMN" data-source="post: 236085" data-attributes="member: 8469"><p>I'm still trying to find a 500w microwave.</p><p></p><p>A common misconception is that a normal off the shelf 1000w microwave at 50% is doing 500w. They always put out the rated/listed wattage, unless you have a very very special oven.</p><p>The power level adjustment is actually more like dwell time than power attenuation. It's roughly how much time as a percentage of the total run time the oven is 'ovening' with the magnetron energized instead of just turning on the light and spinning the plate. You can hear it.</p><p></p><p>This is to allow the heat to spread through things that's molecules don't get easily excited by RF. Like ice, meat (especially frozen),and generally most non-liquids. Water, some sugars, and most fats dissipate the heat fairly evenly. Nearly everything else has a dissipation lag. This is the cause of warping when heated for too long of a period by a microwave. Inconsistent heating leads to inconsistent expansion and sets up for odd stresses when cooling as well.</p></blockquote><p></p>
[QUOTE="JMN, post: 236085, member: 8469"] I'm still trying to find a 500w microwave. A common misconception is that a normal off the shelf 1000w microwave at 50% is doing 500w. They always put out the rated/listed wattage, unless you have a very very special oven. The power level adjustment is actually more like dwell time than power attenuation. It's roughly how much time as a percentage of the total run time the oven is 'ovening' with the magnetron energized instead of just turning on the light and spinning the plate. You can hear it. This is to allow the heat to spread through things that's molecules don't get easily excited by RF. Like ice, meat (especially frozen),and generally most non-liquids. Water, some sugars, and most fats dissipate the heat fairly evenly. Nearly everything else has a dissipation lag. This is the cause of warping when heated for too long of a period by a microwave. Inconsistent heating leads to inconsistent expansion and sets up for odd stresses when cooling as well. [/QUOTE]
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