Values above and to the right of this line are generated by the computer interpolation function and should be disregarded. T he application of these principles to brewery plant involves adjusting the conditions present in the plant of interest so that they are similar to the optimum conditions for clarification performance. I n such large plants, the distance between the nearest and the furthest vessel from the point of finings addition may differ by as much as 100 metres, with a corresponding difference in residence time. Further trials are planned at BRFI to determine the relative importance of retention time. Hydrodynamic conditions giving optimum subsequent settling performance have been observed for fined beer in the laboratory.
Considerable similarity is observed for the two commercial lagers studied.
I n summary, the application of these flocculation principles has the potential to considerably improve fining clarification performance. T ranslation to turbulent flow conditions and brewery scale equipment have not yet been studied. Manual of Good Practice for the use of Copper, Isinglass and Aux-iliary Finings in Brewing', published by BRFI, 1995. After graduation Ken Burrell joined BRF International where his main interest was Beer Clarification. Ken is a member of the Institute of Brewing, and a graduate member of the Institution of Chemical Engineers.