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Old 10-17-2012, 03:27 AM   #1
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Default Is a double stage batch sparge process better than a single stage batch sparge?

I am looking into moving to a larger sized cooler (70 qt instead of 40 qt) and in one the the amazon reviews a user mentiond that with this larger cooler he can do all of his batch sparging in a single step instead of breaking it into multiple steps, thus saving him time for the brewing process.

So other than being able to use less sparge water in a two step process, is a double stage batch sparge process better than a single stage batch sparge in removing sugar for the wort?


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Old 10-17-2012, 03:36 AM   #2
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How about.... it depends. The only way to know if it will help you is to try it. It is a really easy test.

I personally haven't seen a benefit, but others have reported success.


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Old 10-17-2012, 03:56 AM   #3
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http://braukaiser.com/wiki/index.php...rging_Analysis
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Old 10-17-2012, 03:56 AM   #4
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It helped my efficiency about 5-7%, but it does take more time. Try it for yourself and see if it's worth it to you.
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Old 10-17-2012, 04:21 PM   #5
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As posted above Braukaisers image shows a slight efficiency improvement with additional sparges:



However, a lot of people here, including some highly experience brewers like Denny Conn say it doesn't matter and to just do a single as it's more time saving. I double batch sparge because that's what I started with. Since getting my grain mill I get very consistent 81% efficiency and since double batch sparging doesn't take much more time I figure I'll stick with my process. It's up to you though. Though by no means scientific you can try a double batch sparge on a recipe and then next time you do it try a single and see the difference.


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Old 10-17-2012, 04:39 PM   #6
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My efficiency was lower when I did 10gallon batches versus 5 gallon and the only real difference in my process was the number of batch sparges. For a 5gallon I had to do 2 sparges because of the volume constraint with my cooler mash tun, whereas I could get the total sparge water in with the grains in my keggle mash tun. My last 10 gallon batch I wanted to check on it, so I split the sparge into 2 and my efficiency went up about 8 points. Nothing had changed (weight of grains, crush, volume of water, temperatures, etc) so 2 sparges it is for me from here on out.
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Old 10-17-2012, 07:38 PM   #7
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2 batch sparges takes longer but is more efficient. You have to decide for yourself if the difference in grain is worth the time savings.
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Old 10-17-2012, 07:51 PM   #8
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Quote:
Originally Posted by Homercidal View Post
2 batch sparges takes longer but is more efficient. You have to decide for yourself if the difference in grain is worth the time savings.
I've actually found it really doesn't take much more time, no more than 10 minutes for sure. I used to wait ten minutes after each sparge addition for things to settle before draining again but Yooper and a few other posters said that rest (to settle) time wasn't necessary so now I don't wait the 10 minutes, though I still give it a minute or two to rest from my stirring for the heck of it.


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Old 10-18-2012, 01:50 AM   #9
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Personally I didn't notice a change in efficiency when I switched to single.
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Old 10-18-2012, 05:32 PM   #10
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Here's a good read about it:

http://hbd.org/cascade/dennybrew/


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