Microwave Wattage Converter

[triplets_93]

Microwave Time Adjustment based on Wattage vs. Wattage listed on the package when cooking for dinner.

I've always guessed, but now I can get an exact recommendation when cooking with the Microwave.

https://www.omnicalculator.com/everyday-life/microwave-wattage

For reheating, I almost always have used less than High Heat, and guessed the (longer) time.

 

[nobody]

There must be more to it than that. For decades I used an 1100 watt microwave. I moved into a new house in 2021 and it's 1000 watt. Now, that calculator says for an 1100 watt 4 minute cook time, I should set mine for 4 minutes 24 seconds. But I use the same cook times as 1100 and it always comes out like it should. I'm not sure how/why, but I think some are more efficient (somehow). I don't know how it could be, given wattage is wattage and 1000 is 1000 while 1100 is 1100.

 

[Runwildboys]

There must be more to it than that. For decades I used an 1100 watt microwave. I moved into a new house in 2021 and it's 1000 watt. Now, that calculator says for an 1100 watt 4 minute cook time, I should set mine for 4 minutes 24 seconds. But I use the same cook times as 1100 and it always comes out like it should. I'm not sure how/why, but I think some are more efficient (somehow). I don't know how it could be, given wattage is wattage and 1000 is 1000 while 1100 is 1100.

Perhaps microwaves become less efficient over time. I used to have to lower the time on mine, but now it seems like almost anything I hear up isn't fully done, or evenly heated, and I have to put it back in.

 

[nobody]

Perhaps microwaves become less efficient over time. I used to have to lower the time on mine, but now it seems like almost anything I hear up isn't fully done, or evenly heated, and I have to put it back in.

That could be. Maybe the magnetron inside loses it's efficiency due to wear. It would make sense if it was that since the magnetron is what produces the microwaves.

https://electronics.stackexchange.c...es-loss-of-power-over-lifetime-of-a-magnetron
https://groups.google.com/g/sci.electronics.repair/c/Ov2P6-WmUv0?pli=1