[Gibbon1]

I work with low power RF stuff. My gut feeling is RF transistors will run you about a dollar to fifty cents per watt. Notable though high power RF transistors are a niche product. So you might have a good discount if you ordered a million of them.

One advantage is if you can direct the RF energy you could cook TV Dinner and Airline meals without over or under cooking. Could use machine vision and bar code to select the program.

Also wouldn't need a rotating plate.

[londons_explore]

Non-RF MOSFETS can be about 2000 watts for 10 cents... [1]. RF transistors aren't substantially more difficult to make either. They're only pricy today due to low volume.

[1]: https://www.aliexpress.com/item/32993849971.html

[tinus_hn]

I want to believe but what I see as the result is TV dinner DRM where you this only works for selected premium dinners.

[londons_explore]

To get decent quality, there is going to need to be integration between the meal-maker and the device maker.

The meat needs cooking one way, the veg another, and the salad on the side needs to remain chilled. To get all that right is going to require quite detailed data from the food manufacturer.