Exam Focus
- Explain fermentation as a brewing analysis topic within Processes.
- Use specific evidence such as raw material form, time, temperature, pH, oxygen, gravity, microbes, vessel, pressure, and sanitation.
- Apply the topic to wort composition, fermentation performance, flavor, stability, clarity, carbonation, and mouthfeel rather than repeating the heading alone.
Core knowledge
- Fermentation converts sugars into ethanol, CO2, heat, and flavor-active compounds including esters, phenols, sulfur compounds, diacetyl, and organic acids.
- Yeast strain, pitching rate, oxygen, nutrients, wort composition, temperature, pressure, and sanitation shape attenuation and flavor.
- Warmer or stressed fermentation can increase esters, fusel alcohols, sulfur, diacetyl, or incomplete attenuation depending on strain and conditions.
Study application
Trace finished-beer flavor and attenuation back to fermentation management.
Key Terms
- Warmer or stressed fermentation
- Warmer or stressed fermentation can increase esters, fusel alcohols, sulfur, diacetyl, or incomplete attenuation depending on strain and conditions.