Author Topic: Lid on or off during boil?  (Read 8407 times)

Offline reverseapachemaster

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Re: Lid on or off during boil?
« Reply #90 on: October 18, 2013, 10:28:47 AM »
I wonder how much of the darker color comes from increasing density as the liquid boils off versus more complex chemical reactions.
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Offline klickitat jim

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Re: Lid on or off during boil?
« Reply #91 on: October 18, 2013, 10:32:14 AM »
That's what I was going to ask. Boiling 6 gallons down to 5 seems like it would be 16% darker just by less water

Online narvin

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Re: Lid on or off during boil?
« Reply #92 on: October 18, 2013, 03:36:00 PM »
That is a factor, however, more significant darkening happens due to chemical reactions, especially at higher pH.

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Online HoosierBrew

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Re: Lid on or off during boil?
« Reply #93 on: October 18, 2013, 03:54:13 PM »
That's a little too dense for me, but I thought the maillard reactions were occuring during kilning and only to a limited degree in the kettle.  I do not dispute the darkening of wort over a vigorous boil, however.
[/quote]
That was always my understanding regarding Maillard reactions. I would just be curious as to what really happens, because I understand that it's not caramelization proper.  But it seems that , aside from the obvious darkening that occurs, there are (especially in long boils) some "caramelly" flavors developed.

« Last Edit: October 18, 2013, 03:57:43 PM by HoosierBrew »
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