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  • From: "Lynda" <lurine AT softcom.net>
  • To: <homestead AT lists.ibiblio.org>
  • Subject: Re: [Homestead] Question Time Again
  • Date: Sun, 13 Jan 2008 13:44:38 -0800

Well, here's my problem and why the questions. It gets bloody hot here in the summer and fall (110 average) and I'm trying to figure a way to do canning without heating the whole neighborhood and us out of the house.

My plan is to stick a 110 induction stand alone in the screened porch and use it for canning. This is fine with water bath canning because I can get steel speckle ware canners. However, seems all the pressure canners are aluminum.

In Europe they use a lot of induction cooktops/hobs/whatever the heck they call them <g> , so maybe I need to find someone in Europe and find out what they use for pressure canning or even if they pressure can.

If not, the induction unit will reach 400 degrees which would seem plenty of heat even if it is second hand through the old cast iron thingy.

Lynda
----- Original Message ----- From: <Clansgian AT wmconnect.com>


Lynda,

Of course 'magnetic' in this case doesn't mean magnetically charged but
rather subject to magnetic attraction. Any vessel primarily composed of iron or
nickel will work. Almost all stainless steel works with induction cooktops
because it is primarily iron. If a magnet sticks to the pot, it will work with
induction cooking.

Aluminum doesn't, but a lot of expensive aluminum cookware is laminated with
a steel core and that will heat with the induciton, but not very efficiently.

The proposition to put a cast iron griddle (or sorts) on the cooktop works,
only, again not efficiently. The pot on top will heat slowly and not reach the
full heat an iron or steel pot would reach.

The lines of flux generated by the cooktop are dissipating no power, they are
static (or more correctly 'potential'). Whne you put a steel or iron pot (I
suppose there are not actual nickel pots) with a 6" diameter on the cooktop,
only the lines of flux crossing the metal of that pot generate the heat (and
use power). If you put a 18" x 12" griddle on the top, that great mass of iron
will cut through most of the magnetic field, draw a lot of power, and heat
more slowly than a smaller pot will. The heat generated will be cooking
temperature but no where near flame or element temperature and so a pot put on that
iron will not get nearly so hot nor so quickly.

Worth a try, I'd think though. </HTML>
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