Why do fresh mandarin oranges get very bitter when baked?

What compound in mandarin oranges turns bitter when heated?

  • are you baking rind on? and aaronunt, i think it's supposed to say ingredient in instead of of and I would rephrase it futher to say what part of the mandarine causes the bitterness. Jul 31, 2010 at 22:20
  • Are we really talking about the small orange items here?
    – bmargulies
    Jul 31, 2010 at 22:47
  • 3
    I think and hope so...because if we're talking about the people being baked I'd be bitter too! ;-) Jul 31, 2010 at 22:49
  • I baked a cheesecake with fresh mandarin oranges and it was impossible to eat. Canned mandarine oranges (sweetend) are fine.
    – IanH
    Jul 31, 2010 at 23:51
  • @sarge: It was mainly a cosmetic edit on my part. Looks like Darin fixed the rest already; either way, thanks.
    – Aaronut
    Aug 1, 2010 at 0:25

1 Answer 1


The white, pithy part is a source of the bitterness. Either peel more thoroughly, or trim off with a knife.

The pulp of some oranges (of the navel variety), can turn bitter when exposed to air. http://www.preparedpantry.com/CitrusQuickGuide.htm

  • The link doesn't work
    – steadyfish
    Dec 9, 2020 at 17:04

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