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24-08-2023, 07:05
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https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikLRdjtKIeAyfwvzY6MXF_DxLg7EJQRfv-tvx7JdZWlSFN-d-ZR3b3-zbvvLQjtRxtFgic1VaszR7X957kvhN-K6-IlnPiHccVQUU_P1ADChzaXVNrWKaaNj6QqsoIk5tP8RNKbGJdH Hw3KHWb7zyrW88jgsMiptb91gKVHSLhMpjzMQvj2vrXxOxaSmo/s320/Neeshams_Hopsack.jpg (https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikLRdjtKIeAyfwvzY6MXF_DxLg7EJQRfv-tvx7JdZWlSFN-d-ZR3b3-zbvvLQjtRxtFgic1VaszR7X957kvhN-K6-IlnPiHccVQUU_P1ADChzaXVNrWKaaNj6QqsoIk5tP8RNKbGJdH Hw3KHWb7zyrW88jgsMiptb91gKVHSLhMpjzMQvj2vrXxOxaSmo/s531/Neeshams_Hopsack.jpg)
The varieties being grown were the relatively low alpha acid older types and newer varieties, partly developed for higher bitterness.
As you’ll see, if you can be arsed to look at the numbers in the tables, there was quite a bit of variation in the alpha acid content from year to year.
For example, the difference between the highest and lowest years for Wye Target was 29%. For Goldings, 33%. And for Bullion a massive 46%.
Interestingly, the good and bad years don’t match up for the different varieties. For example, 1976 was the top year for many types: Goldings, Bullion and Progress. But a poor year for Wye Target. While for some 1978 was the best year: Wye Northdown and Wye Challenger.
Now, if I was being dead clever, I’d incorporate the exact alpha acid level into the recipes. Mmm. Good idea that.
From the overall average, it seems that increasing volumes of the higher alpha varieties were being grown.
Average Alpha Acid Content (%) of individual varieties 1969 - 1974
Variety of Hops
1969
1970
1971
1972
1973
1974
Goldings
-
-
4.5
4.2
5.2
4.9
Fuggles
-
-
3.7
4.1
4.4
4.4
Northern Brewer
7.1
6.7
6.1
6.5
7.6
6.9
Bramling Cross
-
6.2
5
4.7
6.4
5.6
Bullion
6.6
6.3
5.9
7.4
8.4
7.7
Wye Northdown
-
-
7.2
7.7
8.5
8.4
Progress
-
5.4
4.9
4.7
5.9
5.4
Keyworths
-
6.5
5.5
5.7
7.7
6.3
Wye Challenger
-
-
7.1
7
7.4
6.9
W.G.V.
-
-
5
4.7
5.7
5.6
Wye Target
-
-
-
-
10
9.3
Others
-
-
4
4.1
5.3
5
Sources:
The Brewers' Society UK Statistical Handbook 1974, page 20.
The Brewers' Society UK Statistical Handbook 1978, page 20.
Average Alpha Acid Content (%) of individual varieties 1975 - 1980
Variety of Hops
1975
1976
1977
1978
1979
1980
Goldings
4.8
5.6
4.6
5.2
4.5
4.7
Fuggles
4.2
4.5
3.9
4.6
3.9
4.2
Northern Brewer
7.1
7.5
6.9
7.5
7.5
7.4
Bramling Cross
5.6
6.8
4.8
5.7
5.5
5.5
Bullion
7.7
9.2
7.1
8.3
6.7
7.8
Wye Northdown
8.1
8.4
8.1
8.6
8
7.9
Progress
5.1
6.3
5.1
5.9
5.1
5.4
Keyworths
6.9
7.4
5.9
7.4
5.7
6.2
Wye Challenger
6.8
7.4
7
7.8
7.2
7.3
W.G.V.
5.1
6.2
5.2
6
5.2
5.7
Wye Target
9.7
9.9
10.2
11.8
10.5
10.8
Wye Saxon
-
6.7
7
7.2
6.9
6.8
Others
5.7
7.1
6.4
7
6.7
6.4
Overall average
-
-
6.9
7.8
7.1
7.3
Sources:
The Brewers' Society UK Statistical Handbook 1974, page 20.
The Brewers' Society UK Statistical Handbook 1978, page 20.
The Brewers' Society UK Statistical Handbook 1980, page 24.
More... (http://barclayperkins.blogspot.com/2023/08/average-alpha-acid-content-of.html)
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikLRdjtKIeAyfwvzY6MXF_DxLg7EJQRfv-tvx7JdZWlSFN-d-ZR3b3-zbvvLQjtRxtFgic1VaszR7X957kvhN-K6-IlnPiHccVQUU_P1ADChzaXVNrWKaaNj6QqsoIk5tP8RNKbGJdH Hw3KHWb7zyrW88jgsMiptb91gKVHSLhMpjzMQvj2vrXxOxaSmo/s320/Neeshams_Hopsack.jpg (https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikLRdjtKIeAyfwvzY6MXF_DxLg7EJQRfv-tvx7JdZWlSFN-d-ZR3b3-zbvvLQjtRxtFgic1VaszR7X957kvhN-K6-IlnPiHccVQUU_P1ADChzaXVNrWKaaNj6QqsoIk5tP8RNKbGJdH Hw3KHWb7zyrW88jgsMiptb91gKVHSLhMpjzMQvj2vrXxOxaSmo/s531/Neeshams_Hopsack.jpg)
The varieties being grown were the relatively low alpha acid older types and newer varieties, partly developed for higher bitterness.
As you’ll see, if you can be arsed to look at the numbers in the tables, there was quite a bit of variation in the alpha acid content from year to year.
For example, the difference between the highest and lowest years for Wye Target was 29%. For Goldings, 33%. And for Bullion a massive 46%.
Interestingly, the good and bad years don’t match up for the different varieties. For example, 1976 was the top year for many types: Goldings, Bullion and Progress. But a poor year for Wye Target. While for some 1978 was the best year: Wye Northdown and Wye Challenger.
Now, if I was being dead clever, I’d incorporate the exact alpha acid level into the recipes. Mmm. Good idea that.
From the overall average, it seems that increasing volumes of the higher alpha varieties were being grown.
Average Alpha Acid Content (%) of individual varieties 1969 - 1974
Variety of Hops
1969
1970
1971
1972
1973
1974
Goldings
-
-
4.5
4.2
5.2
4.9
Fuggles
-
-
3.7
4.1
4.4
4.4
Northern Brewer
7.1
6.7
6.1
6.5
7.6
6.9
Bramling Cross
-
6.2
5
4.7
6.4
5.6
Bullion
6.6
6.3
5.9
7.4
8.4
7.7
Wye Northdown
-
-
7.2
7.7
8.5
8.4
Progress
-
5.4
4.9
4.7
5.9
5.4
Keyworths
-
6.5
5.5
5.7
7.7
6.3
Wye Challenger
-
-
7.1
7
7.4
6.9
W.G.V.
-
-
5
4.7
5.7
5.6
Wye Target
-
-
-
-
10
9.3
Others
-
-
4
4.1
5.3
5
Sources:
The Brewers' Society UK Statistical Handbook 1974, page 20.
The Brewers' Society UK Statistical Handbook 1978, page 20.
Average Alpha Acid Content (%) of individual varieties 1975 - 1980
Variety of Hops
1975
1976
1977
1978
1979
1980
Goldings
4.8
5.6
4.6
5.2
4.5
4.7
Fuggles
4.2
4.5
3.9
4.6
3.9
4.2
Northern Brewer
7.1
7.5
6.9
7.5
7.5
7.4
Bramling Cross
5.6
6.8
4.8
5.7
5.5
5.5
Bullion
7.7
9.2
7.1
8.3
6.7
7.8
Wye Northdown
8.1
8.4
8.1
8.6
8
7.9
Progress
5.1
6.3
5.1
5.9
5.1
5.4
Keyworths
6.9
7.4
5.9
7.4
5.7
6.2
Wye Challenger
6.8
7.4
7
7.8
7.2
7.3
W.G.V.
5.1
6.2
5.2
6
5.2
5.7
Wye Target
9.7
9.9
10.2
11.8
10.5
10.8
Wye Saxon
-
6.7
7
7.2
6.9
6.8
Others
5.7
7.1
6.4
7
6.7
6.4
Overall average
-
-
6.9
7.8
7.1
7.3
Sources:
The Brewers' Society UK Statistical Handbook 1974, page 20.
The Brewers' Society UK Statistical Handbook 1978, page 20.
The Brewers' Society UK Statistical Handbook 1980, page 24.
More... (http://barclayperkins.blogspot.com/2023/08/average-alpha-acid-content-of.html)