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Old 01-15-2009, 09:25 PM   #1
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Default Can't reach rolling boil, is that bad?

I am boiling a wort right now and my stove to can't bring 2.5 gallons to a rolling boil. Right now the wort is boiling at 212 degree and thats as high as it will go. Will any negitive effects happen to my beer because of this?


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Old 01-15-2009, 09:26 PM   #2
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You might not get as much hop utilization. Try reducing the volume a little.


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Old 01-15-2009, 09:31 PM   #3
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I presume you are doing an extract brew.

If so I wouldn't worry.
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Old 01-15-2009, 10:54 PM   #4
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Try a different pot with better contact to the heating element. ANY stove should be able to boil 2.5 gallons...
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Old 01-15-2009, 11:04 PM   #5
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Unless you use a pressure cooker, 212 degrees is as high any boil will go regardless of the size of the burner.

If you can't get a rolling boil going, some of the holes in the burner are likely plugged. Try cleaning them with oven cleaner and some toothpicks or wire. A rolling boil is desirable for complete hop utilization but not getting one won't ruin the batch.

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Old 01-15-2009, 11:19 PM   #6
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are you using a lid?

its hard for me to believe that with a lid you can't get 2.5gal to a good boil with ANY stove.
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Old 01-15-2009, 11:24 PM   #7
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Don't use a lid. It's better to have a lesser boil than to boil with a lid on.
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Old 01-16-2009, 12:43 PM   #8
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Had the same problem my 1st time. I kept waiting and waiting. Then finally just rolled and finished the recipe to spec and it didnt turn out too bad.
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Old 01-16-2009, 03:34 PM   #9
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OK, if I understand the physics here, 212 is as high a temp as you can get at normal atmospheric pressure, right? To get higher temps, you need some way to increase the pressure, like a pressure cooker.

Until I get a burner and start some REAL boils, I start with the lid on the pot. I lift the lid regularly to let the DMS and other evil spirits out, and to check on the boil. Once I get a decent boil, the lid stays off.

Now that I have a 5 gallon pot, getting 4 gallons to boil in it takes FOREVER, even with the lid on. Our glass top stove sucks. I'm working on a heatstick, and that should help until I get my burner.

Just how important is a "rolling boil"? As long as you are at 212, you are boiling.
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Old 01-16-2009, 05:49 PM   #10
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212 is the standard boiling point for water not wort.

The main reason for a rolling boil is to do with AG brewing.

To concentrate the wort.
coagulate proteins
drive of unwanted compounds.

All of those have already been done with extract.


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