The Great Bottle Opener Giveaway

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > consistently low OG w/ mini mash

Reply
 
LinkBack Thread Tools
Old 05-18-2013, 06:59 PM   #1
JLivermore
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2012
Location: Chicago, IL
Posts: 105
Liked 3 Times on 3 Posts
Likes Given: 3

Default consistently low OG w/ mini mash

Not sure what the problem is here. If I brew extract I hit very close to OG.

I've tried mini mash 4 or 5 times, the only difference being mashing the grains in the nylon sack longer (45 mins), then sparging - 1 quart per 2 lbs grain.

I've tried as the directions indicate -- pour 170 degree water over the grains, and the deathbrewer method, soaking the bag in the 170 degree sparge water.

Either way I'm usually a full point under OG. I got pretty close with a darker ale once. 3-4 attempts with a few different IPA recipes all too low...

Any ideas what I can do to get more accurate?

__________________
JLivermore is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2013, 08:23 PM   #2
Captain Damage
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Captain Damage's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Lowell, Massachusetts
Posts: 1,231
Liked 81 Times on 69 Posts
Likes Given: 5

Default

1 quart per 2 lbs is a pretty thick mash. We usually do 1 to 1½ quarts per pound, and thinner mashes are not detrimental. Also, you can squeeze the grain bag a little (not a double entendre ) to get a little more sugar out.

__________________

Stop using so much caramel malt. Your beer will thank you.
(yes, Carapils is a caramel malt...so is Special B)

FERMENTING

BOTTLED
pujwI HIq Mild Ale
KPA Khitomer Pale Ale

Captain Damage is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2013, 08:52 PM   #3
BlindFaith
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2012
Location: Lexington, SC
Posts: 303
Liked 8 Times on 7 Posts

Default

I am AG only and have never mini mashed, but Capt. Damage is right; 1 qt per 2 lbs is very very thick. I usually shoot for 1.25-1.5 per lb. Like I said, I am not sure if the mini mash is any different, but I wouldn't think so. What are you mashing at?

__________________
BlindFaith is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2013, 11:40 PM   #4
chickypad
lupulin shift victim
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
chickypad's Avatar
Recipes 
 
Join Date: Jul 2010
Location: SF Peninsula
Posts: 2,461
Liked 227 Times on 203 Posts
Likes Given: 103

Default

Agreed, mash thinner and use a big enough bag to make sure the grains are loose.

__________________
chickypad is offline
 
Reply With Quote Quick reply to this message
Old 05-18-2013, 11:54 PM   #5
CA_Mouse
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
CA_Mouse's Avatar
Recipes 
 
Join Date: Jan 2013
Location: Riverside, Califiornia
Posts: 780
Liked 87 Times on 75 Posts
Likes Given: 207

Default

Quote:
Originally Posted by JLivermore View Post
Not sure what the problem is here. If I brew extract I hit very close to OG.

I've tried mini mash 4 or 5 times, the only difference being mashing the grains in the nylon sack longer (45 mins), then sparging - 1 quart per 2 lbs grain.

I've tried as the directions indicate -- pour 170 degree water over the grains, and the deathbrewer method, soaking the bag in the 170 degree sparge water.

Either way I'm usually a full point under OG. I got pretty close with a darker ale once. 3-4 attempts with a few different IPA recipes all too low...

Any ideas what I can do to get more accurate?
One thing you don't state is if you are using LME/DME. If you aren't, then that would be the issue. If you can post your recipe, I'm sure we can point you in a better direction.

Mouse
__________________
CA_Mouse is offline
 
Reply With Quote Quick reply to this message
Old 05-19-2013, 05:15 AM   #6
gr8shandini
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2009
Location: Philly
Posts: 786
Liked 54 Times on 42 Posts

Default

What do you mean by "a full point"? Most people refer to a "point" as the thousands place in SG. For example, a wort that clocked in at 1.055 would be referred to as "55 points." If you were expecting 1.055 and got 1.054, I'd call it a great success.

And as with the others, I'm confused about the amount of water you're using. Are you sparging with 1 quart / 2 lbs, or is that what you mashed in? If your initial water to grain ratio is very far from 1.25 to 2.0 quarts / lb, you might not be achieving full conversion. Ditto if you don't have enough base malt with the flaked barley, or oats, or whatever it is in your recipe that you need to mash.

Finally, it could also be that you're doing everything correctly and still have some variability in the final result. Accepting that means that you're just half a step away from all-grain brewing. After a couple batches, you'll be able to figure out what kind of efficiency to expect from your mash. And even then, you'll often miss by a few points, but you'll figure out how to make up for that in the boil. If you could be more specific, we could help point you in the right direction

__________________
gr8shandini is offline
 
Reply With Quote Quick reply to this message
Old 05-19-2013, 06:19 AM   #7
chickypad
lupulin shift victim
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
chickypad's Avatar
Recipes 
 
Join Date: Jul 2010
Location: SF Peninsula
Posts: 2,461
Liked 227 Times on 203 Posts
Likes Given: 103

Default

Quote:
Originally Posted by gr8shandini View Post
What do you mean by "a full point"? Most people refer to a "point" as the thousands place in SG. For example, a wort that clocked in at 1.055 would be referred to as "55 points." If you were expecting 1.055 and got 1.054, I'd call it a great success.
Well that's a good question. I didn't catch that on the first read. If we're really talking one gravity point I guess we're all worried about nothing.
__________________
chickypad is offline
 
Reply With Quote Quick reply to this message
Old 05-19-2013, 11:52 AM   #8
JLivermore
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2012
Location: Chicago, IL
Posts: 105
Liked 3 Times on 3 Posts
Likes Given: 3

Default

Interesting, the directions said 1 qt for 2 lbs but I will try ignoring that and using 1 qt per lb next time and see if it helps.

Point didn't make much sense, sorry about that.

If target OG was 1.065, I get 1.055.

__________________
JLivermore is offline
 
Reply With Quote Quick reply to this message
Old 05-19-2013, 12:15 PM   #9
Captain Damage
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Captain Damage's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Lowell, Massachusetts
Posts: 1,231
Liked 81 Times on 69 Posts
Likes Given: 5

Default

1 quart per pound is still a pretty thick mash. 1-1/3 quarts per pound seems to be about the average that I read here (it's also what I have Beer Smith set to). Traditionally, German mashes are often close to the 2 quarts per pound range. The Australian brew in a bag method calls for mashing with all of your water, including your sparge water.

__________________

Stop using so much caramel malt. Your beer will thank you.
(yes, Carapils is a caramel malt...so is Special B)

FERMENTING

BOTTLED
pujwI HIq Mild Ale
KPA Khitomer Pale Ale

Captain Damage is offline
 
Reply With Quote Quick reply to this message
Old 05-19-2013, 12:21 PM   #10
ericbw
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Posts: 727
Liked 76 Times on 60 Posts
Likes Given: 3

Default

Quote:
Originally Posted by JLivermore
Interesting, the directions said 1 qt for 2 lbs but I will try ignoring that and using 1 qt per lb next time and see if it helps.

Point didn't make much sense, sorry about that.

If target OG was 1.065, I get 1.055.
Sounds like the directions got flipped around. Maybe they meant 2 Q water per 1 pound of grain?
__________________
ericbw is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mini-Mash, Partial Mash and Steeping Specialty Grains Daparish Beginners Beer Brewing Forum 32 04-11-2013 10:03 PM
Consistently low on my mash temps (Beersmith) beertastic All Grain & Partial Mash Brewing 13 11-29-2012 08:22 PM
AHS - Mini-Mash Dry vs Mini-Mash Liquid THRobinson Beginners Beer Brewing Forum 5 04-05-2011 12:54 AM
Mini mash vs. All grain - Mini Mash wins Grinder12000 General Beer Discussion 48 03-30-2010 11:22 AM
AHS mini-mash vs. Deathbrewer's partial mash scone All Grain & Partial Mash Brewing 9 12-22-2009 07:02 PM