Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > How much fermentable sugar will I get from pumpkin?
Reply
 
Thread Tools
Old 10-07-2010, 06:21 PM   #1
Scooby_Brew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Canton, MI
Posts: 1,007
Liked 40 Times on 27 Posts
Likes Given: 21

Default How much fermentable sugar will I get from a pumpkin?

I'm about to brew a pumpkin ale, but I never know how much fermentable sugars, if any, will I get in my mash tun from a pumpkin? From my previous experience my guess is that I do get some sugar, but not much. Does anyone know the exact number?


__________________
"My Brew Day" on YouTube.
RDWHAHB
Scooby_Brew is offline
 
Reply With Quote
Old 10-07-2010, 06:38 PM   #2
JonK331
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Fremont, CA
Posts: 2,101
Liked 32 Times on 32 Posts
Likes Given: 6

Default

I'm curious about this as well. I also wonder if the pumpkin has enough starch in it to be worth mashing. I made a pumpkin ale last year with canned organic pumpkin added at the end of the boil (I baked it in the oven for an hour or so until lightly browned). The beer fermented down to 1.009 and ended up really clear. I don't understand the benefit of mashing the pumpkin with the grain. Sounds like a messy PITA. Anyone know the reason? And "because Jamil says so" is not a good answer.


JonK331 is offline
 
Reply With Quote
Old 10-07-2010, 06:47 PM   #3
Airborneguy
Adjunct of the Law
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Airborneguy's Avatar
Recipes 
 
Join Date: Sep 2009
Location: Isle of Staten
Posts: 10,856
Liked 846 Times on 624 Posts
Likes Given: 1105

Default

Last year, I mashed the pumpkin, but I used a whole pumpkin which I roasted. This year, I am likely going to use canned pumpkin, and in that case I agree it should go in the boil.

Using BeerAlchemy to calculate my recipe, I did not see any difference in the OG using the pumpkin in the mash, meaning I got little, if any, sugar from the pumpkin. Just a guess, but tossing it into the boil should probably yield more sugar as the canned pumpkin has already been cooked anyway.
__________________
Fermentor(s):
Lagering:
Bottled: Atonement Brown Porter
Airborneguy is offline
 
Reply With Quote
Old 10-07-2010, 06:55 PM   #4
shecky
Moderator
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
shecky's Avatar
Recipes 
 
Join Date: May 2008
Location: Watertown, CT
Posts: 38,833
Liked 3591 Times on 3466 Posts
Likes Given: 3

Default

I have no idea on the fermentables issue, but I have done pumpkin ales with canned pumpkin both in the boil and in the mash. The one that I mashed (just a few weeks ago) has far more body and better color. And it wasn't a PITA to mash. Throw in a pound of rice hulls and you're golden so long as you go a bit slower on the sparge.

If you use it in the boil, you're going to have an assload more trub than if you use it in the mash.
shecky is online now
 
Reply With Quote
Old 10-07-2010, 08:06 PM   #5
JonK331
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Fremont, CA
Posts: 2,101
Liked 32 Times on 32 Posts
Likes Given: 6

Default

Quote:
Originally Posted by shecky View Post
I have no idea on the fermentables issue, but I have done pumpkin ales with canned pumpkin both in the boil and in the mash. The one that I mashed (just a few weeks ago) has far more body and better color. And it wasn't a PITA to mash. Throw in a pound of rice hulls and you're golden so long as you go a bit slower on the sparge.

If you use it in the boil, you're going to have an assload more trub than if you use it in the mash.
Yeah I noticed that last year, huge amount of trub. How much canned pumpkin did you add to the mash? I think I will try it if it's not a PITA as you say.
JonK331 is offline
 
Reply With Quote
Old 10-07-2010, 08:10 PM   #6
shecky
Moderator
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
shecky's Avatar
Recipes 
 
Join Date: May 2008
Location: Watertown, CT
Posts: 38,833
Liked 3591 Times on 3466 Posts
Likes Given: 3

Default

Quote:
Originally Posted by JonK331 View Post
Yeah I noticed that last year, huge amount of trub. How much canned pumpkin did you add to the mash? I think I will try it if it's not a PITA as you say.
60 oz, four 15 oz cans. Baked it at 350 for 30 minutes then let it cool.
shecky is online now
 
Reply With Quote
Old 10-07-2010, 08:22 PM   #7
JonK331
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2009
Location: Fremont, CA
Posts: 2,101
Liked 32 Times on 32 Posts
Likes Given: 6

Default

Quote:
Originally Posted by shecky View Post
60 oz, four 15 oz cans. Baked it at 350 for 30 minutes then let it cool.
Sorry, should have asked last time. We're talking about five gallon batches here right?
JonK331 is offline
 
Reply With Quote
Old 10-07-2010, 08:27 PM   #8
shecky
Moderator
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
shecky's Avatar
Recipes 
 
Join Date: May 2008
Location: Watertown, CT
Posts: 38,833
Liked 3591 Times on 3466 Posts
Likes Given: 3

Default

Quote:
Originally Posted by JonK331 View Post
Sorry, should have asked last time. We're talking about five gallon batches here right?
Yup.
shecky is online now
 
Reply With Quote
Old 10-07-2010, 10:47 PM   #9
scottland
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2010
Location: Chandler, AZ
Posts: 2,117
Liked 146 Times on 108 Posts
Likes Given: 12

Default

I made my first pumpkin ale this year, and I also added 60oz of pumpkin to the mash. I added a pound of rice hulls, and my sparge went smooth as can be.

The beer has a nice full body, and lots of pumpkin aroma. I didn't get any fermentable sugar from the pumpkin though. My OG was 1.054, which was dead on for my grain bill without the pumpkin.
scottland is offline
 
Reply With Quote
Old 10-09-2010, 12:24 AM   #10
nilo
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2009
Location: Seattle, WA
Posts: 723
Liked 24 Times on 21 Posts

Default

I mashed the cooked pumpkin with the grains and it added nothing to my OG.


nilo is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Article: How To Brew Pumpkin Beer in a Pumpkin, in 20 Easy Steps Picobrew All Grain & Partial Mash Brewing 7 08-09-2014 03:54 PM
Shoot -- mashed hot, screwed? Also, iodine = sugar or fermentable sugar? shortyjacobs All Grain & Partial Mash Brewing 7 10-11-2009 02:31 AM
Efficiency Calculation: include non-fermentable adjuncts? Jknapp All Grain & Partial Mash Brewing 5 08-17-2009 02:05 PM
Overly fermentable wort. Boil down more? CharlosCarlies All Grain & Partial Mash Brewing 7 04-19-2009 01:08 AM
Measuring Fermentable Sugar in Wort? jvetter All Grain & Partial Mash Brewing 10 07-07-2008 06:09 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS