I just noticed that the Journal of the Institute of Brewing is freely available from 2014 back to 1890. The content varies from the historically interesting to the scientifically mind boggling (unless you are a biochemist) but I'm sure there is some interesting stuff in there.
You can find the journal here http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2050-0416/.
You can find the journal here http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2050-0416/.