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Old 10-22-2008, 01:05 AM   #1
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Default Calculating Efficency in Beersmith. Got a question.

So I noticed that I can calculate my effeciency by clicking on the brewhouse efficiency button in Beersmith. However, I noticed that there are three ways it tells me my effecency:

1) Based on OG
2) Based on volume and OG going into the boiler
3) Based on batch voulme going into the fermenter

Should I average the three together or just look at a particular one? Thanks guys

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so barley is a leaves of hops? or barley is a different plant? and blend with hops? I need that to be cleared thanks..
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Old 10-22-2008, 03:09 AM   #2
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I don't have Beersmith, but you cannot calculate efficiency without knowing both the volume and gravity.
1 Does not take volume into account, so I don't see how that could work.
2 is your lauter efficiency which tells you how well the mash and sparge has gone. That's good to know if you need to make some adjustments during the boil
3 doesn't mention the gravity of the wort going into the fermenter, but I suspect if you look at the values to be entered to get the answer, you will find that OG is one of them. If so, this would be your brew house efficiency (which should always be lower than 2) as you lose some volume due to trub, hop absorption, and wort left in the equipment.

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Old 10-22-2008, 03:21 AM   #3
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Efficiency calculations require grainbill weights(with maximum yield stats), volume, and gravity. The software obviously knows the grainbill. The "into the boiler" calc is mash/lauter efficiency. "into the fermenter" is brewhouse. Both are important.

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Old 10-22-2008, 03:21 AM   #4
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Quote:
Originally Posted by ajf View Post
I don't have Beersmith, but you cannot calculate efficiency without knowing both the volume and gravity.
1 Does not take volume into account, so I don't see how that could work.
2 is your lauter efficiency which tells you how well the mash and sparge has gone. That's good to know if you need to make some adjustments during the boil
3 doesn't mention the gravity of the wort going into the fermenter, but I suspect if you look at the values to be entered to get the answer, you will find that OG is one of them. If so, this would be your brew house efficiency (which should always be lower than 2) as you lose some volume due to trub, hop absorption, and wort left in the equipment.

-a.
I will post a pic :

Might be a little big but w/e
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Originally Posted by papabeach1 View Post
so barley is a leaves of hops? or barley is a different plant? and blend with hops? I need that to be cleared thanks..
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Old 10-22-2008, 03:22 AM   #5
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Quote:
Originally Posted by Bobby_M View Post
Efficiency calculations require grainbill weights(with maximum yield stats), volume, and gravity. The software obviously knows the grainbill. The "into the boiler" calc is mash/lauter efficiency. "into the fermenter" is brewhouse. Both are important.
Ok thanks a lot. But when it calculates brewhouse effiecency does it take the gravity into effect?
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so barley is a leaves of hops? or barley is a different plant? and blend with hops? I need that to be cleared thanks..
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Old 10-22-2008, 03:31 AM   #6
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BE Based on Target:

This section merely helps the user to tweak the estimate efficiency used to determine the potential extract based on the PPPG figures as keyed for individual ingredients (Grain, Sugar, Adjuncts)

Efficiency into Boiler:

This is your Mash Efficiency or Sparge efficiency. Again dependant on the accuracy of extract potential for the DB ingredients. This tells you how much of the sugar you actually extracted from the grist.

Efficiency into Fermenter:

This is the actual Brewhouse efficiency. Which takes in consideration how well the Mash/Sparge went, volume boiled off, how well you compensated for dead space losses and how well you hit your intended gravity post boil.

So, you want to pay attention to all 3.

Edit: OP linked pic while I was typing. Dang.
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Old 10-22-2008, 03:32 AM   #7
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Yeah, it has to. Now that you posted the pic, I can see why it's confusing. The first box and last box are both variations of the same calculation. The first box is using your batch size number as the volume and your actual entered OG. Then the 3rd box is there because it's often you'll find that you ended up with a little more or less volume into the fermenter due to unplanned boiloff rates or hop absorption so it gives you a place to enter the actual. Doing that gives you a corrected brewhouse efficiency. It would have been a little more intuitive to join those two sections.

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Old 10-22-2008, 04:30 AM   #8
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Quote:
Originally Posted by Bobby_M View Post
Yeah, it has to. Now that you posted the pic, I can see why it's confusing. The first box and last box are both variations of the same calculation. The first box is using your batch size number as the volume and your actual entered OG. Then the 3rd box is there because it's often you'll find that you ended up with a little more or less volume into the fermenter due to unplanned boiloff rates or hop absorption so it gives you a place to enter the actual. Doing that gives you a corrected brewhouse efficiency. It would have been a little more intuitive to join those two sections.
Thanks! I am going to start calculating effiecency now
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so barley is a leaves of hops? or barley is a different plant? and blend with hops? I need that to be cleared thanks..
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Old 10-22-2008, 04:54 AM   #9
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Look at the top section first.
On the right side, it states that you have set you have set the program up to expect 70% efficiency, which would result in an OG of 1.046 if you achieved your required target volume of 6.00g. (I know you had specified a target volume of 6.00g because section 3 - right side states planned volume is 6.00g)
You actually achieved a gravity of 1.047, but it fails to take into account that you only collected 5.50g of wort instead of the 6.00g that you had told Beersmith that you would collect. The Actual Efficiency reported in this section is incorrect as you did not achieve the planned volume. However, as the efficiency reported in this section is higher than those reported in sections 2 and 3, it indicates that you have entered an incorrect parameter (in this case the boil off rate) somewhere else.

Section 2 is much more understandable. You specify the volume and the pre-boil gravity. The left side is what you specified, the right side specified what you had set Beersmith up to excpect.
You hit the pre-boil volume exactly (7.00g), but your bre-boil gravity was a few points low. The percentage reported here is what I referred to as your lauter efficiency, and Bobby_M referred to (more accurately) as your mash/lauter efficiency. Beersmith refers to it as "Efficiency into Boiler". This is a parameter specified by you, and to get accurate results you need to adjust this parameter downwards by about 3%

Section 3 reports your brewhouse efficiency. You entered the volume into the fermenter in this section, and it uses the OG entered in section 1 to complete the calculation. You lost an additional 2% (which is pretty good) between your Efficiency into Boiler, and your Brewhouse Efficiency.

I don't know exactly what parameter Beersmith expects for the efficiency prediction, but my guess would be Brewhouse Efficiency, in which case, you should reduce it by about 5%

Hope you can understand all this.

-a.

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Old 10-22-2008, 06:30 AM   #10
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That whole display in BS is a mess.

What is called "Actual Efficiency" in the first section really isn't your Brewhouse efficiency (unless you hit your planned final volume exactly), and what is called "Efficiency as calculated from Actual Volume" in the third section really is your actual Brewhouse efficiency because it is based on all the actuals, plus your grain bill. What is called "Brewhouse Efficiency" in the first section is really your assumed input Brewhouse efficiency from which BS calculated the "Estimated OG" above it.

The "Planned Volume" in the second section serves no useful purpose since no estimated mash/lauter efficiency based on it is calculated and displayed. That would be interesting for comparison with your actual mash/lauter efficiency though. The field labeled "Efficiency into Boiler" belongs to the left underneath the actuals from which it is calculated.

If I were redesigning that dialogue box, I'd clearly label the input assumed efficiency and display all the estimated efficiencies based on input or calculated volumes in one section. Then I'd put all the actuals and results calculated from them in a separate section. I think that would make it more understandable.

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