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Home Brew Forums > Home Brewing Beer > General Beer Discussion > Aggressive boil
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Old 12-02-2011, 06:55 PM   #1
Gustavo
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Default Aggressive boil

Was wondering while boiling do I keep the boil high and aggressive for the 60min. Or do I lower to a slower boil?

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Old 12-02-2011, 06:59 PM   #2
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The boil does not have to be aggressive. As long as the boil continues for the full length you are OK. Also less aggression = fewer boil-overs.

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Old 12-02-2011, 06:59 PM   #3
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Awesome thanx

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Old 12-02-2011, 07:20 PM   #4
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Functionally, there's dependency on the base malt, where the lighter the malt the more benefit from a "rolling boil", to drive off DMS precursors.

That said, I always do a rolling boil for the full duration, regardless of base malt, if only because my recipes are calibrated to a certain boil-off rate if I want to hit my post-boil volume and density...

Cheers!

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Old 12-02-2011, 07:21 PM   #5
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While not required I have noticed that my beer is much clearer whith an aggressive 90min boil vs. a slow 60min boil. YMMV.

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Old 12-02-2011, 07:45 PM   #6
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I'm definitely of the "aggressive boil" school of thought just from experiences with the outcome. I tend to get a cleaner flavor and aroma and also a slightly clearer beer. Use more water... it's worth it

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Old 12-02-2011, 07:49 PM   #7
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My electric stove is so weak...I never get a roaring boil...so I do a 90 boil and account for a lot of evaporation. Good protein break is all you need. No worries. Yes using more water is okay just boil longer to evaporate it and the gravity will remain on target.

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Old 12-02-2011, 08:35 PM   #8
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This is one of those points that there is a lot of disagreement and debate over. If you look at the directions of any kit you might buy, they will always suggest something like a "slow, rolling boil". These directions are not the ultimate authority though of course.

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Old 12-02-2011, 08:45 PM   #9
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I achieve a nice bubbling boil, nothing more. I am in the camp that believes that an aggressive rolling boil to "drive off DMS precursors" -or evil spirits- is a homebrewing myth. My homebrews come out just fine, in many styles, are consumed by numbers of people, and no one complains of off flavors.

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Old 12-02-2011, 11:29 PM   #10
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Ok I boil on a stove, would you recommend doing a 90min. Boil and is there any consequence if only boiling for 60 on slow boil

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