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22-03-2023, 07:12
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https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihwLURJ-2PyISrV_7F-a-BTwjsZ451vk1dz9X0YJk5MvDMRSyAZ4z15QLrUrppKDrFBevrS 8k2Kdy3rwtmLpu4eXfXE6H9CghQ8Xp5o4XX3rSuSetq4BmpA4n waqPTNXXEBfULm9KWqODUJbloy9fSIk76GJ0CULBM0WTvdyJZM ufHJ12E8fsjSFQu/w305-h400/Truman_Best_Stout.jpg (https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihwLURJ-2PyISrV_7F-a-BTwjsZ451vk1dz9X0YJk5MvDMRSyAZ4z15QLrUrppKDrFBevrS 8k2Kdy3rwtmLpu4eXfXE6H9CghQ8Xp5o4XX3rSuSetq4BmpA4n waqPTNXXEBfULm9KWqODUJbloy9fSIk76GJ0CULBM0WTvdyJZM ufHJ12E8fsjSFQu/s786/Truman_Best_Stout.jpg)
You asked for an Imperial Stout recipe and here it is. From Truman, whom you might not associate with the style. The version from Barclay Perkins being rather more famous.
Imperial Stout wasn't just brewed by those two breweries. Courage also produced one before WW I. And there was a bizarre trade in Scotland for London-brewed Imperial Stout. So much so that, between the wars, Barclay Perkins brewed a special (weaker) version just for the Scottish market.

Here we are at Truman’s strongest Stout, Imperial. Except that it isn’t. Going against naming conventions, it’s weaker than Double Export Stout.

The grist is the same as Running Stout and Double Stout. There’s a reason for that: it was parti-gyled them. Quite a low brown malt content and quite a lot of black malt. As in most of the other Stouts, apart from Double Export Stout.

As the mashing details are cryptic even for Truman. There were at least three mashes, but there could have been more.

All American hops, two types, both from the 1869 harvest.

Unlike in 1861, it was racked into a vat. Number 2 vat, to be precise. I can’t have been very big, as only 50 barrels were brewed.



1870 Truman Imperial Stout


pale malt
17.75 lb
88.75%


brown malt
1.50 lb
7.50%


black malt
0.75 lb
3.75%


Cluster 120 min
3.50 oz



Cluster 60 min
3.50 oz



Cluster 30 min
3.50 oz



Goldings dry hops
1.00 oz



OG
1084



FG
1023.5



ABV
8.00



Apparent attenuation
72.02%



IBU
155



SRM
29



Mash at
148º F



Sparge at
170º F



Boil time
120 minutes



pitching temp
60º F



Yeast
Wyeast 1099 Whitbread Ale





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