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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Infusion mashing with infusions higher than boiling
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Old 03-11-2012, 04:23 AM   #1
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Default Infusion mashing with infusions higher than boiling

Just wondering if there would be an issue infusion mashing with smaller amounts of water at temps higher than boiling. I've got some space issues with my Tun.

TIA

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Old 03-11-2012, 04:27 AM   #2
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Just wondering if there would be an issue infusion mashing with smaller amounts of water at temps higher than boiling. I've got some space issues with my Tun.
TIA
Water at temps higher than boiling?
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Old 03-11-2012, 04:35 AM   #3
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Yes, the water I would add as the infusion would be higher than boiling.

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Old 03-11-2012, 04:42 AM   #4
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How can you make water higher than boiling without it turning into steam? That's called superheating, and water will no longer be a liquid at temps higher than boiling..

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Old 03-11-2012, 04:42 AM   #5
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If you can do this without a sealed container??
Physics make this impossible. Once water boils at 212 degrees at sea level it will not get any hotter. Steam will get hotter but as soon as it hits air it cools and will go below boiling point.

I'm sure that someone with a better scientific background could explain this better.

But no, without specialized equipment you can not do it.

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Old 03-11-2012, 04:46 AM   #6
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You can do it if everything, HLT, MLT, is under pressure. But that would require specialized equipment.

Plus, I don't see the point.

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Old 03-11-2012, 04:48 AM   #7
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You can do it if everything, HLT, MLT, is under pressure. But that would require specialized equipment.

Plus, I don't see the point.
Exactly!
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Old 03-11-2012, 04:56 AM   #8
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Hotter than boiling issue aside... the enzymes for converting grain starches to fermentable sugar are not active above 170F.

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Old 03-11-2012, 06:18 AM   #9
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Yes, the water I would add as the infusion would be higher than boiling.
From what, a pressure cooker?
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Old 03-11-2012, 06:21 AM   #10
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From what, a pressure cooker?
By the time you opened the pressure cooker any water over boiling temp would flash off and you'd still have water at or below normal boiling temp unless you could transfer the water from inside the pressure cooker to the MLT without ever opening it.
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