Hi,
At the brewery I work at we have brewed a hazy IPA which has struggled to settle out appropriately when we have gone to transfer to Brite tank via bag filtration.
Our process is as follows
10% flaked oats
10% malted wheat
Whirfloc
Fermentis S04
Dry hop at 6.2P it has finished at 3.3P. at this dry hop we set the spundling valve to 0.5 bar.
It took 13 days to pass vdk. We did a vdk rise from 18C to 22C at 6.2 P but didn't reach any higher than 18.8 C. We dumped bottoms pre vdk pass but the beer was at 3.3 P.
Once we passed vdk, we dry hopped at 15C for 3 days. After this we chilled to -1.5C for 5 days dumping bottoms each day. The beer look relatively free of yeast/hop matter at this point. We did not use any finings at this point.
For filtration we went through a 100 micron bag filter. This blocked after 300L. We tried another bag for the same result. We could see slugs of yeast and hop going through the sight glass. We were going through the racking arm for filtration.
We have then added biofine at 0.2g/l for the beer remaining in fermenter. We plan to try again after two days.
Can anybody offer any suggestions why the beer may not be settling out appropriately?
Thanks
At the brewery I work at we have brewed a hazy IPA which has struggled to settle out appropriately when we have gone to transfer to Brite tank via bag filtration.
Our process is as follows
10% flaked oats
10% malted wheat
Whirfloc
Fermentis S04
Dry hop at 6.2P it has finished at 3.3P. at this dry hop we set the spundling valve to 0.5 bar.
It took 13 days to pass vdk. We did a vdk rise from 18C to 22C at 6.2 P but didn't reach any higher than 18.8 C. We dumped bottoms pre vdk pass but the beer was at 3.3 P.
Once we passed vdk, we dry hopped at 15C for 3 days. After this we chilled to -1.5C for 5 days dumping bottoms each day. The beer look relatively free of yeast/hop matter at this point. We did not use any finings at this point.
For filtration we went through a 100 micron bag filter. This blocked after 300L. We tried another bag for the same result. We could see slugs of yeast and hop going through the sight glass. We were going through the racking arm for filtration.
We have then added biofine at 0.2g/l for the beer remaining in fermenter. We plan to try again after two days.
Can anybody offer any suggestions why the beer may not be settling out appropriately?
Thanks
Comment