I say pretty sure. Replace that with totally sure. I remembered that I have photos detailing Whitbread’s Belgian trade. They exported three beers: Pale Ale, Extra Stout and – here’s the surprise – Double Brown.
From the specifications, Whitbread Extra Stout looks very much like it’s intended as a direct competitor to the Guinness beer of the same name. That had a very similar strength. And, despite being a beer often brewed in a foreign country, adhered to the final set of price restrictions from WW I by having an OG around 1050º.
Distinctive features are the short boil time – just 75 minutes – and Polish hops. Looking at historic UK beers you eventually come across every type of hop ever grown in the whole world. But Polish hops are pretty rare.
|1939 Whitbread Extra Stout|
|pale malt||7.50 lb||59.10%|
|mild malt||1.50 lb||11.82%|
|brown malt||1.00 lb||7.88%|
|chocolate malt||1.00 lb||7.88%|
|flaked oats||0.19 lb||1.50%|
|No. 3 invert sugar||1.00 lb||7.88%|
|caramel 1000 SRM||0.50 lb||3.94%|
|Lublin 75 mins||1.00 oz|
|Fuggles 75 mins||0.50 oz|
|Goldings 30 mins||1.50 oz|
|Mash at||148º F|
|Sparge at||170º F|
|Boil time||75 minutes|
|pitching temp||62º F|
|Yeast||Wyeast 1099 Whitbread Ale|