Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Rookie efficiency questions

Reply
 
LinkBack Thread Tools
Old 11-30-2008, 03:49 PM   #1
mangine77
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Posts: 261
Default Rookie efficiency questions

I just did my second ever all-grain batch. I set my efficiency on Beersmith to 68% because I'm still learning and I'm using the Zapap lauter tun which I know can cause some loss in efficiency.

I used 11.25 lbs of grains and had an OG of 1049 and my target was 1050. Did I really get that close to my target? So that means that I was at around 70% efficiency right?? Because I was supposed to hit 1050 at 68%.

Is that how this works?

I did have an issue with my sparge because I was supposed to have two seperate 2.5 gallon sparges and after the first one, my kettle was at my pre-boil volume (6.3 gallons).

Is only sparging with 2.5 gallons of water going to be bad for this beer?

I think I started the mash with around 3.75 gallons of water and I added around a gallon of really hot water to the tun to fill up the false bottom. I think this is why my boil kettle was full even before the second sparge.

Sorry for all the basic questions, but I'm learning a lot in a short period of time thanks to the brew nuts on here.

__________________
Albatross Brewing Company

Help pick out my next beer for the British Open:
http://albatrossbrewing.blogspot.com/



I feel sorry for people who don't drink. When they wake up in the morning, That's as good as they're going to feel all day.
-Frank Sinatra


http://albatrossbrewing.blogspot.com/
mangine77 is offline
 
Reply With Quote Quick reply to this message
Old 11-30-2008, 04:10 PM   #2
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 2 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 21,890
Liked 934 Times on 621 Posts
Likes Given: 28

Default

If I use 11.25 pounds of standard 2-row, 1.049 at 5 gallons is actually 61% efficiency.

Your mash ratio with 4.75 gallons is 19qts:11.25lbs = 1.68qts/lb which is a little thin but within reasonalbe limits. The grain will typically soak in about .1 gallons per pound leaving 3.65 gallons to extract. I can understand why the 2.5 gallon sparge was enough.

My MLT also has nearly one gallon of deadspace under the bottom. I shoot for a ratio of 1qt/lb then add one gallon. For your bill, that would be just under 4 gallons. You'd drain out about 3 gallons leaving two batches of 1.75 sparge.

To be honest, if you execute it carefully, you'd likely be able to hit the 1.050 target using 8 pounds of malt because your efficiency will go up because you'll be able to sparge more. Example: 8lbs with a ratio of 1qt/lb is 2 gallons + your 1 gallon deadspace. You'd get out about 2 gallons first runnings leaving two sparge infusions of about 2.1 gallons each.

Yup, the increased sparge volume really does make a big difference. This is why I advocate precise AG techniques because throwing a few extra pounds of malt into the bill isn't always the answer.

__________________
BrewHardware.com
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!

New Stuff?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 11-30-2008, 04:33 PM   #3
mangine77
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2008
Posts: 261
Default

Quote:
Originally Posted by Bobby_M View Post
If I use 11.25 pounds of standard 2-row, 1.049 at 5 gallons is actually 61% efficiency.

Your mash ratio with 4.75 gallons is 19qts:11.25lbs = 1.68qts/lb which is a little thin but within reasonalbe limits. The grain will typically soak in about .1 gallons per pound leaving 3.65 gallons to extract. I can understand why the 2.5 gallon sparge was enough.

My MLT also has nearly one gallon of deadspace under the bottom. I shoot for a ratio of 1qt/lb then add one gallon. For your bill, that would be just under 4 gallons. You'd drain out about 3 gallons leaving two batches of 1.75 sparge.

To be honest, if you execute it carefully, you'd likely be able to hit the 1.050 target using 8 pounds of malt because your efficiency will go up because you'll be able to sparge more. Example: 8lbs with a ratio of 1qt/lb is 2 gallons + your 1 gallon deadspace. You'd get out about 2 gallons first runnings leaving two sparge infusions of about 2.1 gallons each.

Yup, the increased sparge volume really does make a big difference. This is why I advocate precise AG techniques because throwing a few extra pounds of malt into the bill isn't always the answer.
So what specific effects may this have on the beer?
__________________
Albatross Brewing Company

Help pick out my next beer for the British Open:
http://albatrossbrewing.blogspot.com/



I feel sorry for people who don't drink. When they wake up in the morning, That's as good as they're going to feel all day.
-Frank Sinatra


http://albatrossbrewing.blogspot.com/
mangine77 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
a couple more rookie questions HighLife Beginners Beer Brewing Forum 9 09-05-2009 05:44 AM
Mead rookie questions FL_Javelin Mead Forum 6 01-25-2008 01:49 AM
Rookie brew questions eurc51 Beginners Beer Brewing Forum 8 01-14-2008 09:24 PM
General Hop Questions from Rookie au1991rx All Grain & Partial Mash Brewing 10 03-30-2007 09:28 AM
More rookie questions! Nexus555 Beginners Beer Brewing Forum 8 02-16-2007 07:14 PM