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10-12-2018, 10:37
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What fun research is. I've spent my evenings this week transcribing Drybrough brewing records. Quite a lot of work and not a barrel of laughs. Just stuff that has to get done.

As I've put in all that effort, it seems fair enough to bore you bastards with some of the results. Otherwise, I'll just have been frittering away some of my few precious hours left on this earth. Excuse me. A weird appreciation of my own mortality kicked in when I turned 60. Hence all my frantic writing activity.

Anyway, over to today's topic, watery Scottish Pale Ale. In the form of Drybrough 60/-/.

By far the most popular beer Drybrough brewed both before and during WW II was their 60/-. It was about 80%of what they brewed.

Which is interesting because it was well below average OG, in the late 1930s around 1043º. In terms of strength, it was around the same as Barclay Perkins Ordinary Mild, X Ale, but a good bit weaker than their Ordinary Bitter, which was 1045º.

Drybrough 60/- was pretty lightly hopped in comparison with London draught beers. 5lbs per quarter (336 lbs) of malt going into the war. When Barclay’s X Ale got 7 Lbs per quarter. Which makes 60/- look more like an English Light Mild than a Pale Ale.

The profile of gravity reduction is very different from WW I. There’s a dip in the first couple of years but then, between 1942 and 1946, a surprising stability. With another dip after war’s end.

The FG at time of consumption would have been lower. The figure I give in the table is the racking gravity. These were cask-conditioned beers which would have continued to ferment after racking. They were probably at least 70% attenuated when they hit the thirsty drinker’s glass.



Drybrough 60/- 1938 - 1947


Date
Year
OG
FG
ABV
App. Atten-uation
lbs hops/ qtr
hops lb/brl


14th Oct
1938
1038
1011
3.57
71.05%
4.83
0.76


19th Oct
1939
1038
1013.5
3.24
64.47%
4.93
0.76


3rd Jan
1940
1036
1013
3.04
63.89%
5.00
0.74


3rd Feb
1941
1037
1014
3.04
62.16%
3.94
0.63


11th Jul
1941
1034
1012
2.91
64.71%
3.90
0.54


2nd Feb
1942
1032
1015.0
2.25
53.13%
3.05
0.44


3rd Feb
1943
1032
1013.5
2.45
57.81%
3.98
0.51


14th Oct
1943
1032
1013.5
2.45
57.81%
3.45
0.48


17th Jan
1944
1032
1013
2.51
59.38%
3.45
0.45


13th Jul
1944
1032
1012.5
2.58
60.94%
3.58
0.50


8th Feb
1945
1032
1007.5
3.24
76.56%
3.55
0.46


8th Oct
1946
1029
1009
2.65
68.97%
3.44
0.43


23rd Oct
1947
1029
1012
2.25
58.62%
1.95
0.44


Sources:


Drybrough brewing records held at the Scottish Brewing Archive, document numbers D/6/1/1/4 and D/6/1/1/5.





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