Over a 100% in efficiency. Is it possible?

[ChristianSA]

The obvious answer is no.

However a colleque of mine claims that he gets 12,5HL of (adjusted for liquid expansion of the hot wort) from 155 kg of grain.

Going over the numbers I work that out to 103% effeciency (using the tables in "New Brewing Lager Beer").

Could somebody please verify my calculation - and assuming it is correct tell me if they have experienced something similar.

-Christian

[South County]

You would need to attain how many pounds of fermentable sugars are in that wort volume, plus a few other variables. You could also get 15 hl or wort from 155kg but at a lower gravity. Fill me in if I'm missing something or if certain assumed values are being used.

[gitchegumee]

What plato is the wort? What kind of grain?

[ChristianSA]

What plato is the wort? What kind of grain?

Stupid me! I totally forgot the OG: 1038.

/Christian

[gabewilson50]

I plugged in 155 kg of the highest yield base malt into ProMash and got a 99-100% brewhouse efficiency. I doubt your colleague is getting anywhere near this.

[beertje46]

The obvious answer is no.

However a colleque of mine claims that he gets 12,5HL of (adjusted for liquid expansion of the hot wort) from 155 kg of grain.

Going over the numbers I work that out to 103% effeciency (using the tables in "New Brewing Lager Beer").

Could somebody please verify my calculation - and assuming it is correct tell me if they have experienced something similar.

-Christian

Is your colleague using a Meura 2000 EVO Mash Filter? Yields over 100% are possible with the right $$ equipment.

[theburden]

Is your colleague using a Meura 2000 EVO Mash Filter? Yields over 100% are possible with the right $$ equipment.

That was going to be my response as well. Those Mash Filters are some kind of magic.

[monkeybrewer]

I understand brewhouse efficiencies (I think) so I'm having trouble understanding how one could get over 100% yield. Is this a relative term? Any explanation would be greatly appreciated.
Cheers

[d_gardonio]

I understand brewhouse efficiencies (I think) so I'm having trouble understanding how one could get over 100% yield....

I might need a little refresher on this one too, but as far as I remember the efficiency was relative to what was reported on the malt analysis sheet. I think that the standard ASBC laboratory mash that is used by maltsters to determine the fine grind extract (%FG) can actually be improved upon in a brewery using a fine grinding hammer mill and a Meura mash filter.

On the Meura website they say they can deliver the same amount of extract as the laboratory yield as a minimum! (http://www.meura.com/products-and-se...2001-carbo.htm)

So I think that unless Christian's friend has a Meura, that it's pretty safe to call "Bull Shit" on that one.

Dave

[monkeybrewer]

Thanks Dave...that makes sense
Cheers