Every beer except the two poshest – PA Export and KKKK – had some flaked maize in the grist. With the Mild Ales containing rather more than the other styles. Flaked maize was a pretty standard ingredient, occurring in the overwhelming majority of brewers’ beers. 10% - 15% is a pretty typical proportion.
At around 10%, the total quantity of sugar in the Mild Ales is towards the low end of typical. The principal type, however, is, however, totally typical: No. 3 invert. Used for both colour and flavour, it was important in achieving the expected character of a Mild. After colour correction, the dark versions would have contained a slightly greater proportion of caramel.
The other sugar which pops up in the Mild Ales and DB is something called “BS”. It could simply be brown sugar.
I was so surprised by the percentage of No. 3 invert sugar in the Pale Ales that I went back to the brewing records to check. I would have expected No. 1 or No.2, especially in those quantities. Checking back through the brewing records, it appears that they switched from No. 2 invert to No. 3 in 1937.
KK once again shadows the Mild Ales, though without any BS. While its stronger siblings are out on their own with No. 2 invert.
Brewed from just pale malt and No. 1 invert, PA Export must have been relatively pale, especially for its gravity. Its simple grist is reminiscent of Pale Ales from the 19th century.
| Barclay Perkins Ale adjuncts and sugars before WW II | ||||||||
| Year | Beer | Style | flaked maize | no. 1 sugar | no. 2 sugar | no. 3 sugar | BS | caramel |
| 1936 | DB | Brown Ale | 12.38% | 6.60% | 3.30% | 0.96% | ||
| 1939 | A | Mild | 15.15% | 8.98% | 1.12% | 0.66% | ||
| 1939 | X | Mild | 15.15% | 8.98% | 1.12% | 0.66% | ||
| 1939 | XX | Mild | 15.15% | 8.98% | 1.12% | 0.66% | ||
| 1939 | IPA (bottling) | IPA | 11.30% | 17.33% | 0.14% | |||
| 1939 | XLK (bottling) | Pale Ale | 11.02% | 17.52% | 0.24% | |||
| 1939 | XLK (trade) | Pale Ale | 11.10% | 16.65% | 0.12% | |||
| 1939 | PA | Pale Ale | 11.10% | 16.65% | 0.12% | |||
| 1936 | PA Export | Pale Ale | 7.69% | |||||
| 1936 | KK | Strong Ale | 9.25% | 12.34% | 1.30% | |||
| 1937 | KK (bottling) | Strong Ale | 8.15% | 14.49% | 1.29% | |||
| 1936 | KKKK | Strong Ale | 10.43% | 0.87% | ||||
| Source: | ||||||||
| Barclay Perkins brewing records held at the London Metropolitan Archives, document numbers ACC/2305/01/621 and ACC/2305/01/623. | ||||||||
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