Pages

Wednesday, 27 November 2024

Let's Brew Wednesday - 1906 Drybrough PI 48/-

By the start of the 20th century, the mainstay of Scottish breweries was a range of Pale Ales at different strengths. Drybrough was no exception.

Bottom of the pile was PI 48/-. At just 1035º, it’s incredibly weak for a pre-WW I beer. It’s not even 3% ABV. You wouldn’t have come across any beer as weak as this in London. On account of beers as weak as this, average gravity in Scotland was several degrees lower than in England.

Typically for Scotland, there’s no malt other than the base pale malt. Though there were four different types of this malt. Slightly more than half was made from foreign barley, namely Bengazi from North Africa and Ushak from Eastern Turkey.

There’s also sugar. Both No.1 and No.2 invert. Along with a small amount of DXT, which I assume is caramel for colour correction.

Four types of English hops were used, two from the 1903 harvest and two from 1905. 

1906 Drybrough PI 48/-
pale malt 6.00 lb 76.73%
flaked rice 0.67 lb 8.57%
flaked maize 0.40 lb 5.12%
No. 1 invert sugar 0.33 lb 4.22%
No. 2 invert sugar 0.40 lb 5.12%
Caramel 500 SRM 0.02 lb 0.26%
Fuggles 120 mins 0.50 oz
Fuggles 90 mins 0.50 oz
Goldings 30 mins 0.50 oz
Goldings dry hops 0.50 oz
OG 1035
FG 1013
ABV 2.91
Apparent attenuation 62.86%
IBU 21
SRM 6
Mash at 148º F
Sparge at 168º F
Boil time 120 minutes
pitching temp 60.5º F
Yeast WLP028 Edinburgh Ale

7 comments:

  1. Back in 2013 you guessed that the name PI was drawn from IPA but weren't sure, since they just switched to calling them PAs in 1920. Has there been any more uncovered on what was on their minds with the term PI?

    "A philosophical question before we get bogged down in detail: what style of beer was PI? The name implies it was an IPA. However in 1920 the names of all Drybrough's Pale Ales were changed from PI to PA. PA presumably standing for Pale Ale. There was no change in the character of the beers. So were they IPA's or Pale Ales? It's this sort of shit that has me seriously considering just using Pale Ale as the style for any Pale Ale or IPA. There is no way of differentiating the two styles, other than what the brewer called them."

    https://barclayperkins.blogspot.com/2013/04/drybrough-pi-1914-1919.html

    ReplyDelete
  2. PI could have been Pale India as a sort of shortened version of IPA? 1920 was slap bang in the middle of some tumultuous events in India, and it's possible the brewery wanted to move away from the politics of the day towards something more anonymous?

    ReplyDelete
    Replies
    1. This recipe is from 1906.
      Oscar

      Delete
    2. Yes and it is a PI - per the quote above 'The name implies it was an IPA. However in 1920 the names of all Drybrough's Pale Ales were changed from PI to PA. PA presumably standing for Pale Ale.'

      Delete
  3. Guess they predicted the future of British ale brewing with this one.
    Oscar

    ReplyDelete
  4. PI and PA were brewhouse names. Not necessarily what the beers were sold as. I've seen Drybrough IPA labels from much later than 1920.

    ReplyDelete
  5. A beautiful theory crumbling in the face of reality...

    ReplyDelete