kettle souring - bc food protection association - home
TRANSCRIPT
Kettle Souring
Who does the Fermentation?
What is fermentation?
• Metabolic process
• Input: sugars
• Output: Acids, gases or alcohols
Beer Fermentation
Substrate
Lag Phase
Lag Phase
Conquer
the Substrate
Lactobacillus – Lactic acid
Acetobacter – Acetic Acid
Saccharomyces - Ethanol
Trump – Wall
What can go wrong?
• Oxidized
• Musty
• Diacetyl
• DMS
• Butiric
• Alkaline
• Acid
• Sour
• Phenolic
• Metallic
• Light-struck
• Acetaldehyde
Hot Water
Malt
Mash Tun
Kettle
Heat Exchanger
Fermenter
Hops
Yeast
Cold Water
Beer
Hot Water
Malt
Mash Tun
Kettle
Heat Exchanger
Fermenter
Hops
Yeast
Cold Water
Beer
lactobacillus
