Unfortunately, the information is patchy. For the 1970s, only the grower in listed. No harvest year (mostly) and no variety. About the only thing I know for certain is that all the hops were English. I suspect that at least some came from Kent, one of the growers being Neame.
The information for the 1980s is much better, mostly including both the harvest year and the variety. You'd be surprised how rare having all this useful data is. The presence of higher alpha varieties such as Bramling Cross and Northern Brewer could explain a drop in the hopping rate in 1984.
Was the appearance of Whitbread Goldings Varieties a result of an increased Whitbread influence?
One trend with the hops is clear. After 1982 more different types were used in each brew. Earlier, just two or three types were employed. Later, it was between five and seven types. That's an awful lot. Between two and four different hops was standard. Severn is really excessive.
Why have so many different hops? Usually, it's to even out the flavour from batch to batch. If you used a single type of Golding then switched to all Norther Brewer, there would be a sudden change in a beer's character.
|Boddington Bitter hops 1971 - 1987|
|Date||Year||hop 1||hop 2||hop 3||hop 4||hop 5||hop 6||hop 7|
|18th Apr||1977||English 1976||English 1976||English|
|31st Mar||1980||English 1978||English 1979||English 1979|
|4th Jan||1982||English 1980||English 1980||English 1980|
|9th Jan||1984||Bramling Cross||Bramling Cross||Goldings||Goldings||Northern Brewer|
|14th May||1984||English 1980||English 1982||English 1982||English 1982||English 1982|
|25th Mar||1985||Bramling Cross 1982||Fuggles 1983||Whitbread GV 1982||Goldings 1982||Goldings 1983|
|24th Feb||1986||Bramling Cross 1983||Fuggles 1984||Whitbread GV 1983||Goldings 1984||Northern Brewer 1982|
|Boddington brewing records held at Manchester Central Library, document numbers M693/405/134, M693/405/135 and M693/405/136.|
|Boddington brewing record held at the Science and Industry Museum, Manchester, document number 2006.4/Z/7/1 and 2006.4/Z/7/2.|