Improving the Effectiveness of Isinglass Finings for Beer
Clarification by Optimisation of the Mixing Process.
Part 3: Full-Size Prototype Evaluation
G. J. Freeman 1, 9, M. H. B. Powell-Evans 2,
J. M. Baron 3, M. K. Dawson 4, A. Pate 5, A. J. Skipper 6, C.
T. Evans 6, C. A. Boulton 7, C. M. Grimmett 8 and X. Le Gourrierec 4
1 Brewing Research International, Lyttel Hall, Nutfield, Surrey,
RH1 4HY, UK.
2 Adnams & Co. PLC, Sole Bay Brewery, Southwold, Suffolk,
IP18 6JW, UK.
3 Statiflo International Limited, The Crown Centre, Bond Street,
Macclesfield, Cheshire, SK11 6QS, UK.
4 BHR Group Limited, The Fluid Engineering Centre, Cranfield,
Bedfordshire, MK43 0AJ, UK.
5 Current address: M. W. Kellogg Limited, Kellogg Tower, Greenford
Road, Greenford, Middlesex, UB6 0JA, UK.
6 McMullen & Sons Ltd, Hertford Brewery, Hertford, Herts.,
SG14 1RD, UK.
7 Coors Brewers, Coors Technical Centre, PO Box 12, Cross
Street, Burton-on-Trent, DE14 1XH, UK.
8 Murphy and Son Ltd., Middlemore Lane West, Redhouse Industrial
Estate, Aldridge, WS9 8DX, UK.
9 Corresponding author. E-mail: gfreeman@brewingresearch.co.uk
J. Inst. Brew. 109(4), 326-331, 2003 | VIEW ARTICLE
ABSTRACT
Previous work has identified the optimal two-stage static mixing process for a small-scale pilot rig. Protocols for scale-up to any brewery process line have been specified. A full-size prototype has been installed in a cask ale brewery. In most cases superior product clarity was obtained when the prototype was operated. Unexpected further benefits were demonstrated from mixing downstream of the mixing system and also disturbance and subsequent resettlement in the cask.
Key words:
Clarification, finings, isinglass, mixing.
Publication no. G-2003-1229-168 ©2003 The Institute & Guild of Brewing