felipefranco
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- Nov 29, 2012
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I've tryed my first triple decoction mash this saturday.
I used 9 lbs/4,1kg of pilsner malt and 0,74lbs/0,34kg of cara-pils
I used 16,4 qts/15,54l of water hitting a ratio of 1,68 qts/lbs and 3,5 l/kg
My steps were:
1- Dough in at 95F/35C and rest for 20mins
2- Take first decoction. 5,43qts/5,14l
3- Raise temp of first decoction to 158F/70C, rest for 20mins for conversion
4- Boil first decoction for 10mins
5- Return to main mash to hit 131F/55C. Do it in 10mins
6- Rest for 5mins
7-Take second decoction. 7qts/6,68l
8- Raise temp of second decoction to 158F/70C, rest for 20mins for conversion
9- Boil second decoction for 10mins
10- Return to main mash to hit 150F/65C. Do it in 10mins.
11- Rest for 30mins for conversion
12- Take third decoction. 6,7qts/6,36l
13- Boil third decoction for 10mins
14- Return ir to main mash to hit 170F/76C and rest for 10mins.
I did steps 1 to 9 perfectly. Both decoctions had a full conversion and all the temps were hit exactly.
The problem was that the main mash didn't convert in step 10.
I let it there for more than a hour at 150F/65C and nothing happened. Tried to raise to 158F latter and still nothing.
After 2 hours of waiting and watching the starches laughing at me, I decided to add more pilsner malt and managed to convert it all.
Do you know what could have gone wrong? I've done everything as expected and listed above.
Could that 2 decoctions had inactivated all the enzymes?
Thanks!
I used 9 lbs/4,1kg of pilsner malt and 0,74lbs/0,34kg of cara-pils
I used 16,4 qts/15,54l of water hitting a ratio of 1,68 qts/lbs and 3,5 l/kg
My steps were:
1- Dough in at 95F/35C and rest for 20mins
2- Take first decoction. 5,43qts/5,14l
3- Raise temp of first decoction to 158F/70C, rest for 20mins for conversion
4- Boil first decoction for 10mins
5- Return to main mash to hit 131F/55C. Do it in 10mins
6- Rest for 5mins
7-Take second decoction. 7qts/6,68l
8- Raise temp of second decoction to 158F/70C, rest for 20mins for conversion
9- Boil second decoction for 10mins
10- Return to main mash to hit 150F/65C. Do it in 10mins.
11- Rest for 30mins for conversion
12- Take third decoction. 6,7qts/6,36l
13- Boil third decoction for 10mins
14- Return ir to main mash to hit 170F/76C and rest for 10mins.
I did steps 1 to 9 perfectly. Both decoctions had a full conversion and all the temps were hit exactly.
The problem was that the main mash didn't convert in step 10.
I let it there for more than a hour at 150F/65C and nothing happened. Tried to raise to 158F latter and still nothing.
After 2 hours of waiting and watching the starches laughing at me, I decided to add more pilsner malt and managed to convert it all.
Do you know what could have gone wrong? I've done everything as expected and listed above.
Could that 2 decoctions had inactivated all the enzymes?
Thanks!