Effect of the Timing of Oxygenation on Very High Gravity Brewing Fermentations

1990 ◽  
Vol 48 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Erin S. C. O'Connor-Cox ◽  
W. M. Ingledew
Keyword(s):  
High Gravity ◽  
Very High Gravity ◽  
Very High ◽  
High Gravity Brewing

scholarly journals EFFECTS OF HIGH PITCHING RATE AND NUTRITIONAL SUPPLEMENTION ON YEAST FERMENTATION PERFORMANCE IN VERY HIGH GRAVITY BREWING

2011 ◽  
Vol 14 (4) ◽  
pp. 5-15
Author(s):  
Nguyet Dang Minh Vo ◽  
Man Van Viet Le
Keyword(s):  
Ethanol Yield ◽  
Yeast Fermentation ◽  
High Gravity ◽  
Fermentation Performance ◽  
Fermentation Time ◽  
Very High Gravity ◽  
Pitching Rate ◽  
Maltose Syrup ◽  
Very High ◽  
High Gravity Brewing

In this study, the 30oBx wort with 30% maltose syrup adjunct was used for very high gravity brewing. Increase in pitching rate from 25×106 cells/mL to 125×106 cells/mL shortened the primary fermentation time and augmented the level of ethanol and diacetyl in the green beer. The suitable pitching rate was 75×106 cells/mL. Under this condition, the fermentation time reduced 44.2% and the ethanol concentration in the green beer increased 13.7% in comparison with those in the culture with conventional pitching rate; the ethanol yield achieved maximum of 44.1%. Combination of high pitching rate and nutritional supplementation to 30oBx wort reduced the fermentation time 8.7% and maintained the similar ethanol content in the green beer and the similar ethanol yield in comparison with the high pitching rate culture.

scholarly journals Comparing the Impact of Environmental Factors During Very High Gravity Brewing Fermentations

2011 ◽  
Vol 117 (3) ◽  
pp. 359-367 ◽  
Author(s):  
Luis Lima ◽  
Tiago Brandão ◽  
Nelson Lima ◽  
José António Teixeira
Keyword(s):  
Environmental Factors ◽  
High Gravity ◽  
Very High Gravity ◽  
The Impact ◽  
Very High ◽  
High Gravity Brewing

Very High Gravity Brewing—Laboratory and Pilot Plant Trials

1992 ◽  
Vol 50 (1) ◽  
pp. 18-25 ◽  
Author(s):  
R. McCaig ◽  
J. McKee ◽  
E. A. Pfisterer ◽  
D. W. Hysert ◽  
E. Munoz ◽  
...  
Keyword(s):  
Pilot Plant ◽  
High Gravity ◽  
Very High Gravity ◽  
Plant Trials ◽  
Very High ◽  
High Gravity Brewing
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