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pltrgyst[_4_]

On 11/11/14, 12:56 PM, wrote:
> On Monday, November 10, 2014 8:38:32 AM UTC-5, pltrgyst wrote:
>>
>> You might also note that manufacturers specifically warn against using
>> such cookware in the manuals for both induction and radiant glass cooktops.
>
> Well, we're starting to go in circles here. That is one of the reasons I asked about *why*. According the manufacturers' recommendations I should have ruined my glass cooktop by using cast iron on it (and other things they advise against) but it's been over 20 years and it still works fine and hasn't cracked or been badly scratched or anything else. My question was specifically about induction, since I've found through empirical processes that the glass smooth top is not nearly as fragile as some would have me believe.
>
> I did some Googling after posting and the idea of inverse square or cubed law is certainly something to think about. It doesn't apply to "near field" induction. Now, how far is near field at the wavelengths involved, I don't know and I don't feel like doing the math. I was hoping for someone with actual experience instead of the speculation most have been engaging in. I do believe one person said it works for them with their CI frying pan.
>
> I suppose I should just buy one, or borrow one from my wife, and try it with my smooth bottomed vs. the one pan I have with a slight ring and see if there is any practical difference. If I do, I'll post results.

Well, a couple of years before we went induction, we had three portable
induction hobs. I also had a beautiful Griswold large logo 10-inch
skillet with a smoke rim, that I used mostly on my outdoor grill. Two of
the three portable induction hobs would cycle on and off continuously
when I tried to use that particular pan.

I ended up giving it to my brother for use on his Viking gas stove, so I
never got to try it on our GE induction cooktop....

I would expect the amount of heat loss due to a smoke rim to vary quite
a bit among various induction burners due to technology and specific
design and manufacturing details.

-- Larry