You must tell me, by the way, if all these numbers start getting too tedious. It won't make me stop posting them, but it may make you feel better.
That hopping rates fell during WW II is no surprise. After more than a third of the new crop was destroyed by an air raid on 29th December, 1940, the government ordered brewers to cut their hopping rates.
"Consumption of hops by brewers was cut in June, 1941, under instructions of the Ministry of Food, by 20%. of the rate used per standard barrel. This cut ceased to operate in 1947"The fall between 1940 and 1942 is indeed around 20%. And, like magic, hopping rates started to climb again in 1948. It's a good illustration of how government directly interfered in the technical aspects of brewing. Many features of beer and pubs have been fiddled with in this way. To a greater extent than in most other industries.
1955 Brewers' Almanack, page 64.
The rise in hopping rates didn't last long. In 1951 they started to decline again and that trend continued until the end of the table. What's odd about the fall between 1960 and 1968, is that there was a swing away from Mild to Bitter in that period. You would expect the hopping rate to have increased.
UK hopping rates 1940 - 1968 | |||||
year | bulk barrels | hops | lbs hops per barrel | Average OG | oz. hops per gravity point |
1940 | 24,925,704 | 265,512 | 1.19 | 1040.62 | 0.47 |
1941 | 28,170,582 | 251,354 | 1.00 | 1038.51 | 0.42 |
1942 | 29,584,656 | 223,007 | 0.84 | 1035.53 | 0.38 |
1943 | 29,811,321 | 231,589 | 0.87 | 1034.34 | 0.41 |
1944 | 31,380,684 | 243,900 | 0.87 | 1034.63 | 0.40 |
1945 | 31,990,334 | 244,822 | 0.86 | 1034.54 | 0.40 |
1946 | 31,066,950 | 226,197 | 0.82 | 1034.72 | 0.38 |
1947 | 30,103,180 | 217,759 | 0.81 | 1032.59 | 0.40 |
1948 | 28,813,725 | 231,470 | 0.90 | 1032.66 | 0.44 |
1949 | 26,744,457 | 233,158 | 0.98 | 1033.43 | 0.47 |
1950 | 25,339,062 | 232,979 | 1.03 | 1033.88 | 0.49 |
1951 | 24,870,564 | 229,106 | 1.03 | 1036.99 | 0.45 |
1952 | 25,285,589 | 228,512 | 1.01 | 1037.07 | 0.44 |
1953 | 24,789,130 | 225,569 | 1.02 | 1036.87 | 0.44 |
1954 | 24,153,387 | 216,841 | 1.01 | 1036.97 | 0.44 |
1955 | 24,324,623 | 217,716 | 1.00 | 1037.13 | 0.43 |
1956 | 24,187,096 | 218,820 | 1.01 | 1037.22 | 0.44 |
1957 | 24,839,755 | 215,114 | 0.97 | 1037.42 | 0.41 |
1958 | 24,129,462 | 208,870 | 0.97 | 1037.48 | 0.41 |
1959 | 25,023,044 | 216,037 | 0.97 | 1037.52 | 0.41 |
1960 | 26,313,796 | 226,371 | 0.96 | 1037.25 | 0.41 |
1961 | 27,600,860 | 234,611 | 0.95 | 1037.41 | 0.41 |
1962 | 27,736,049 | 226,437 | 0.91 | 1037.70 | 0.39 |
1963 | 27,942,561 | 226,565 | 0.91 | 1037.70 | 0.39 |
1964 | 29,485,128 | 237,356 | 0.90 | 1037.66 | 0.38 |
1965 | 29,579,855 | 236,424 | 0.90 | 1037.67 | 0.38 |
1966 | 30,178,056 | 232,119 | 0.86 | 1037.63 | 0.37 |
1967 | 30,751,420 | 221,793 | 0.81 | 1037.46 | 0.35 |
1968 | 30,763,106 | 200,254 | 0.73 | 1037.36 | 0.31 |
Sources: | |||||
Brewers' Almanack 1955, p. 50 | |||||
Brewers' Almanack 1955, page 62 | |||||
Brewers' Almanack 1962, p. 48 | |||||
Brewers' Almanack 1971, p. 45 | |||||
1971 Brewers'Almanack, page 54 |
I must see if I can find the figures for after 1968. I must have them somewhere.
The missing factor is the planting of modern varieties of hops with higher alpha, so you need fewer hops to get the same perceived bitterness.
ReplyDeleteqq,
ReplyDeletethat's a good point. But, at least in the 1950s, the overwhelming majority of hops grown in the UK - and they were most of what UK brewers used - were still Goldings or Fuggles types.