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12-06-2021, 09:02
Visit the Shut up about Barclay Perkins site (http://barclayperkins.blogspot.com/2021/06/lets-brew-1939-heineken-export-pils.html)


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Heineken was already in the export business long before WW II. Though in a much smaller way than they would be after it.

Still, it was a large enough trade not to be sniffed at. In 1939 Heineken’s Rotterdam brewery produced 43,004 hl, or 14.38% of its total output.

Its not hugely different from the standard Pils. The OG and ABV are the same. The grist is only marginally different, with a tiny amount of kleurmout. Which leaves the finished beer ever so slightly darker.

The biggest difference is in the hopping. The rate is a little higher and more hops were added early in the boil. Leaving the calculated IBUs four points higher at 20. Were “Ro” from the 1938 season and “Belg.” – I assume Belgian – with no harvest year specified.


1939 Heineken Export Pils


pilsner malt
8.75 lb
79.55%


flaked rice
2.25 lb
20.45%


Strisselspalt 90 mins
0.50 oz



Strisselspalt 60 mins
0.67 oz



Hallertau 30 mins
0.75 oz



OG
1048



FG
1011



ABV
4.89



Apparent attenuation
77.08%



IBU
20



SRM
4



Mash double decoction




Boil time
90 minutes



pitching temp
48º F



Yeast
WLP830 German Lager







Mash in at 35º C (95º F)
5 minutes


Warm whole mash to 52º C (126º F)
20 minutes


Rest whole mash at 52º C (126º F) (protein rest)
15 minutes


Draw off first mash and without a rest bring to the boil
30 minutes


Boil first mash
10 minutes


The rest of the mash remains at 52º C (126º F)
40 minutes


Mash at 70º C (158º F)
25 minutes


Rest whole mash at 70º C (158º F) (saccharification rest)
30 minutes


Draw off second mash and without a rest bring to the boil
15 minutes


Boil second mash
10 minutes


Mash at 76º C (169º F) and mash out
20 minutes






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