Scotch Ale, Double Mash

[THE DRUNK ARAB]

I've been re reading Noonan's Scotch Ale book and am interested in brewing 2 brews (a strong ale OG 1090and a twopenny OG 1040) using the double mash schedule that is outlined in the book for the 120 Shilling Scotch Ale
To get two 18.93L batches @ 68% efficiency he uses only 4kgs of Pale Malt, .68kgs Carapils and 45g of Roast Barley. To me this doesn't seem near enough malt :blink:

Has anyone tried a double mash or followed any of Noonan's recipe's?
Is there something I'm missing here??
Any advise appreciated.

C&B
TDA

 

[dreamboat]

The numbers don't add up on this at all....
Looks to be only half the grain that would be needed for that type of result.


dreamboat

 

[wee stu]

Can't help much on the brewing side, but it does seem light on to me too.

Now, if you need some help disposing of the final products .......

:chug: :chug: :chug: :chug:

awrabest, wee stu

 

[JasonY]

TDA, haven't read the book but it looks to be way out. By my calcs you need to extract a total of about 2500 gravity pts from the grain.

1.090 * 19L = 1710 grav pts
1.040 * 19L = 760 grav pts

Total = 2470pts

Assuming the recipe meant only 5kg of grain (HWE = 317) then the max extract is 1585 assuming 100% eff! => impossible to brew!

Say it means two lots of 5kg (10kg in total) mashes then it requires you to have an efficiency of 78% to hit the target (this assumes no losses either!).

Of course I could have stuffed all this up

 

[Jovial_Monk]

by double mash he means mash two lots of that grain bill, 8Kg of pale, etc

Jovial Monk

 

[THE DRUNK ARAB]

Thanks 4 all the replies, my home PC is out of action so consequently BeerSmith is out of action. I will double the grain bill, adjust to my efficiency minus say 5% and it will be done on my next available brewday.

And wee stu, you and Mr Miller are welcome to sample when it's ready to rock and roll.

C&B
TDA

 

[Jovial_Monk]

You should be able to calculate a grain bill with pencil, paper & calculator

JM

 

[THE DRUNK ARAB]

You should be able to calculate a grain bill with pencil, paper & calculator

JM

I should but I'm lazy

C&B
TDA