On Sun, 25 Jun 2017 16:03:00 +0100, "James Wilkinson Sword"
wrote:

My microwave turns off the magnetron 15 seconds before the end of the timer. What's the reason for this?


Perhaps you are looking at the question the wrong way, and you should
be asking "Why does the cooling fan (and light) continue to run after
the magnetron turns off", that would of course be a sensible thing to
do. You, as a manufacturer might also want to create the illusion that
these 15 seconds are included in the cooking indicated time and not
tagged on afterwards as some users would correlate the fan noise with
the "nuclear death rays" inside.

Did you know that no microwave radiation is produced for the initial 3
seconds of the indicated cooking time, as it takes that long for the
magnetron to warm up?
--

Graham.
%Profound_observation%