hobby #154 · 2 days
Kombucha Brewing
Fermenting sweetened tea with SCOBY (symbiotic culture of bacteria and yeast) to produce carbonated, tangy probiotic beverage. Primary fermentation in glass jars, secondary fermentation with fruit for flavoring, pH monitoring, temperature control, and continuous culture maintenance.
Jun 3 7:59 PM #154 4 min Four Days at the Bottom Where the Oxygen Stops
Kombucha BrewingDiane's three-year-old culture sank in eight seconds. Turns out boiling water doesn't remove chloramine—only kills the bacteria that needed oxygen to survive.
Jul 5 8:31 PM #154 day 2 3 min Four Grams of Sugar and the Pressure of a Car Tire
Kombucha BrewingLast month the culture died in eight seconds. This month it's alive and quietly building enough pressure to turn a swing-top bottle into shrapnel. Progress, technically.
code-a-day tied to this hobby
- Smoothing Out the Noise in Your Fermentation Data Exponential Moving Average
- The Deadband That Keeps My SCOBY Warm Hysteresis control