Is there any way to know the temperature of food cooking in the microwave?

I am making candy in the microwave and need to be able to cook it to the soft crack stage [290-300 degrees]. How do I know when it reaches this temperature?

1 Answer 1


Some microwaves (not many) include a temperature probe. If yours does not, no luck there.

Don't just stick in a thermometer, it will probably result in arcing and damage.

So, you're back to the olde-fashioned methods where the various stages (soft ball, hard ball, soft crack, hard crack) got their names from - drip some into cold water and see what happens to it, then microwave for some additional time, or don't - or use a stovetop and a pan and a thermometer (the microwave is a challenging heat source for candy-making.)

  • 2
    Oof, yeah, it sounds like it'd be pretty difficult to deal with the uneven heating even if you could reliably measure the temperature at a given point.
    – Cascabel
    Feb 5, 2017 at 20:32
  • Agree with you Ecnerwal... Feb 7, 2017 at 17:05

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