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Author Topic: Killing enzymes?  (Read 17071 times)

Offline euge

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Re: Killing enzymes?
« Reply #45 on: February 08, 2011, 12:17:21 am »
So temp drift (downwards) over a 60-90 minute mash has very little effect if you hit you target above 150 or so? And that it is probably worse to overshoot than undershoot from a fermentabilty standpoint? Just to condense it all... And it's something that's worried me for a long time.

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Offline jeffy

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Re: Killing enzymes?
« Reply #46 on: February 08, 2011, 05:30:07 am »
I'm here to testify that this is indeed true.  I was brewing away from home at one of those Learn to Homebrew events and miscalculated the strike temperature way too high.  By the time I corrected the mash temp down to the mid 150's I'm afraid I'd destroyed all of the beta enzymes and most of the alphas.  I got really bad efficiency on that batch and the beer stopped fermenting altogether at 1.030 from an original gravity of 1.080.  I decided to finish the fermentation several months later by adding brett to it.
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Offline oscarvan

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Re: Killing enzymes?
« Reply #47 on: February 09, 2011, 05:22:44 am »
Day 5....... still bubbling although slowing down, right on cue. Still optimistic.
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
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Offline oscarvan

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Re: Killing enzymes?
« Reply #48 on: February 10, 2011, 11:45:58 am »
OK the first of two buckets is done with primary..... 1010....right where it needs to be. Flavor appears good so far, we'll see where it ends up when it conditions.
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....

Offline oscarvan

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Re: Killing enzymes?
« Reply #49 on: February 11, 2011, 05:24:36 am »
12 hours later.....farting like crazy.... 8) Wait, that's yesterday's batch...ignore.
« Last Edit: February 11, 2011, 10:25:14 am by oscarvan »
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....

Offline oscarvan

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Re: Killing enzymes?
« Reply #50 on: February 11, 2011, 10:39:16 am »
OK, the verdict is in......

Just kegged and force carbonated one bucket as I am to deliver home brew at a "men in the woods with Land Rovers" weekend.

It's a damn fine beer if I may say so myself..... It is NOT the beer it usually is. Good color, body, mouth feel.... but I lost that little hoppy note.

Now, two things happened. Based on the fact that every recipe in "Beer Captured" does this, I reduced the bittering hops by 25% in the extract to all grain conversion, I may reverse that decision.

But, and this is the real question, since this mash was "hot", is it possible that there are more sugars in the result, negating some of the hops?

For the record, here's the recipe

10 pounds two row pale malt
1/2 pound Briess Crystal 20º
1/2 pound Carapils 20º

.75 (1 in the extract) oz Simcoe 60
1 oz Cascadian 10
1oz Cascadian  2

Wyeast 1056
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....

Offline denny

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Re: Killing enzymes?
« Reply #51 on: February 11, 2011, 10:50:31 am »
Ah, "Beer Captured"....there's your problem!
Life begins at 60.....1.060, that is!

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Offline tschmidlin

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Re: Killing enzymes?
« Reply #52 on: February 11, 2011, 10:53:15 am »
But, and this is the real question, since this mash was "hot", is it possible that there are more sugars in the result, negating some of the hops?
You said the OG was dead on and the FG was right where it needs to be - I don't think you have more sugars, and don't think it affected the hops.  I'm not sure what caused the change, I doubt it was your mash.
Tom Schmidlin

Offline euge

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Re: Killing enzymes?
« Reply #53 on: February 11, 2011, 11:02:22 am »
Oscar is the loss of the "hoppy note" from the extract to the grain version? Or grain to grain? And I remember your water is fairly pristine. Do you add salts to the boil or mash?
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Offline bluesman

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Re: Killing enzymes?
« Reply #54 on: February 11, 2011, 11:17:51 am »
Oscar...I calculate roughly 40 IBU's. That hop schedule should lend some percieved bitterness and flavor.

Do you think you added the correct amount of hops?
Ron Price

Offline maxieboy

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Re: Killing enzymes?
« Reply #55 on: February 11, 2011, 11:19:13 am »
Ah, "Beer Captured"....there's your problem!

Do tell. I do a couple recipes from it and they're good. What's the beef?
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Offline euge

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Re: Killing enzymes?
« Reply #56 on: February 11, 2011, 11:24:20 am »
I'm wondering why the reduction? Was the extract version a full boil or a top-up?
The first principle is that you must not fool yourself, and you are the easiest person to fool. -Richard P. Feynman

Laws are spider-webs, which catch the little flies, but cannot hold the big ones. -Anacharsis

Offline oscarvan

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Re: Killing enzymes?
« Reply #57 on: February 11, 2011, 12:32:31 pm »
The extract version was a top up.

I did the Kölsch out of "Beer Captured" and love it....

The loss of the hoppy note is from extract to grain.

The computers say 36 IBU. Yes I weighed the hops out right, using a digital scale calibrated in pounds ounces 0.00

Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....

Offline euge

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Re: Killing enzymes?
« Reply #58 on: February 11, 2011, 12:40:06 pm »
So what about the water? The extract already had minerals in it, so if you haven't adjusted your nearly pure water it might be off flavor-wise. Or if you have adjusted it might not be exactly the same.

Does this seem like it applies oscar?


The first principle is that you must not fool yourself, and you are the easiest person to fool. -Richard P. Feynman

Laws are spider-webs, which catch the little flies, but cannot hold the big ones. -Anacharsis

Offline oscarvan

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Re: Killing enzymes?
« Reply #59 on: February 11, 2011, 01:11:18 pm »
Did not touch the water...... Hmmmmmmmm.
Wooden Shoe Brew Works (not a commercial operation) Bethlehem, PA
http://www.woodenshoemusic.com/WSBW/WSBW_All_grain_Setup.html
I brew WITH style..... not necessarily TO style.....