Franconian Beer Message Board
'U'! |
| Posted by Fred Waltman on 2013-10-15 14:37:36 |
| Those tanks are not the laging tanks but the serving tanks that are below the "magic barrels" in the pub. Lager brewers want the yeast to have lots of contact with the beer, hence the horizontal tanks. Vertical ("cylindro-conical") don't provide the yeast contact that is neaded for proper maturation. Primary fermenters can be open because there is enough CO2 evolution (and yeast cap) to keep most unwanted organisims out of the beer. Once primary fermentation has finished, the beer is kept in "closed" containers to protect it. I say "closed' because they may not be hermtically closed (and excess CO2 can escape) but they are covered in the sense that nothing untoward can fall into the aging beer. |
| Followups: |
 'U'! by Nick B. on 2013-10-16 00:30:50 |
| 'U'! by Uncle Jimbo on 2013-10-16 05:55:14 |
| 'U'! by Fred Waltman on 2013-10-16 12:21:59 |
| 'U'! by Uncle Jimbo on 2013-10-16 18:34:34 |
| 'U'! by Nick B. on 2013-10-17 01:19:34 |