As long as you can easily modulo the time, this works for the range 1 minute (60) to 1 minute 39 seconds (99). Technically you could also do this for times like 2:65 instead of 3:05 but at that point you're not saving a keystroke. And on most microwaves they have an annoying delay between when you can do another keystoke after doing the last one, so I've appreciated the little bit of time saving I get with this knowledge.
They don't actually reduce the 'power' of the microwave, but they turn it on and then back off again for a proportion of time, over and over.
It takes longer to reheat stuff this way, but it comes out much more evenly heated, I find.
Unfortunately, at least on my current model, the UX to access this feature is very bad: repeatedly pressing the "power" button until it reaches the desired level. I've had other microwaves where you just key in the desired power after pressing "power", and much prefer that method.
I don't know whether Panasonic has licensed this to any other manufacturer.
Ooh that's a good use case. What else do you do with it?
The newer microwaves with a sensor reheat button are pretty great.
(I agree it applies just as well generally - but defrosting makes it more apparent/visible.)
Depends on the microwave, you can get models that do adjust the power and they are very nice to use. Being able to slowly and evenly heat up food in the microwave is a huge game changer when it comes to how you use your microwave.
I grew to prefer that method of interfacing with a microwave. "Just go! I don't care about the cook time!" When my wife and I bought our first house and purchased our appliance set, I wanted a microwave that did not force me to go through a timer workflow. Having such a workflow was good, but I also wanted some sort of "on" button on it. We picked out a GE Profile unit that had two user-assignable functions on the main interface. I assigned a "30s cook" function to one of the buttons. This is my "on" button. Additional presses of the button append 30s to the timer. This satisfies most of my needs.
Unfortunately, when I want to reduce power, the buttons that I have to press to do so are not as simple. I start the cook via the normal quick 30s button, but then I have to press the power button, then have to press the down button several times to lower the default power level of 10 to something more reasonable like 5 or 3, then I have to press to confirm that level. This takes precious seconds -- if it's a sensitive item like a small dipping bowl of marinara or something, the adjustment may be too late. Sure, I guess I could go through the full cook workflow, but that's not how I want to interact with it. And you know, if I am expending the time and energy to lower the power level from 10, it is highly unlikely that 9 will be my desired power level. Instead, I wish there was a "halve power level" button on the cook screen that cut the active duty cycle in half. So one press takes me from PL10 to PL5, another press goes to PL2.5, and so forth. Then I'd be happy.
I don't use any of the other features buried in the menus. It's all superfluous.
Buttons suck.
If I recall correctly - 60 imperial seconds are equivalent to 100 metric seconds a sort of inverse to the 100 kph being equivalent to 60 mph (metric units were mandated on American speedometers at the same time)
Of course on the speedometer you can just display both units where as on the microwave entry it's more the intention of the user that drives interpretation. So they got stuck at 100=60 and since everyone just interpreted 100 metric seconds as 1:00, minute it never caught on but never went away either.
This sounds like complete nonsense and I can't find any evidence of such a "mandated by the government metric time" with Google.
The Metric Conversion Act was in 1975, not the 1960s, and I am fairly sure that a decimalized minute was never part of any plans for US metrication anyhow.
This seems like an urban legend where the more likely reason is that its a practical design to treat the last two digits as seconds abd everything before as minutes, irrespective of whether the last two digits are greater than one minute, when making a keypad entry system. It bith does what is likely intended and avoids needing validation/error reporting since every possible numerical entry becomes correct.
I often type 33, 111, 222, etc for the time saving benefit
Related: hold down 2 on the microwave for a couple of seconds to silence all chirps.
It’s amazing how they manage to sell that touch nonsense for $$$$.