Kettle souring doesn't have to be a gamble. If you’ve ever been haunted by a "mousy" off-flavour or a stuck fermentation, this episode is your roadmap to safety.
In this complete guide, Mark and Richard break down the fast, controlled method of quick souring using pure Lactobacillus cultures. We demystify the entire process, walking through the three essential pillars—wort production, bacterial fermentation, and the optional second boil—while arming you with the data needed to protect your beer's foam, flavour, and turnaround time.
In this episode, we break down:
The Three Steps: A foolproof workflow for conventional quick souring.
The Anatomy of THP: What causes that dreaded cereal/mousy off-flavor, and why a 15-minute pre-boil is your best defense.
Cellar Hacks: The hidden benefits of pre-acidifying to pH 4.5 (spoiler: it saves your head retention).
Advanced Adjustments: Weighing the co-pitch method against a second boil, and how to use Kveik to simplify your brew day.
Lacto vs. The New Wave: How traditional Lactobacillus blends hold up against newer souring yeasts like Philly Sour and Sourvisiae.
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