On Sat, 29 Dec 2018 17:15:05 -0000, Bill Wright wrote:

On 29/12/2018 16:27, William Gothberg wrote:

It can take 5 minutes to warm something from frozen to eating
temperature. I see no reason that couldn't be made into 2 minutes.

Conduction

Which would be way faster if the water content the microwaves were hitting was heated hotter. Plus, make the microwave waveform more even, and you would need less conduction.