This guide explains why each step matters, what to expect at each fermentation stage, and how to improve brewing consistency. It complements the beginner-focused First Brew guide.

Brewing Guide: Standard Brewing Process & Best Practices

The iGulu brewing system controls temperature, pressure, and fermentation timing to ensure stable, consistent results. This guide helps you understand the brewing process and refine your technique.

1. Before You Start

To ensure a smooth brew:

• Use purified water at 18–25°C (64–77°F).

• Prepare all ingredients in advance.

• Avoid shaking the keg after adding yeast.

• Keep the machine in a stable indoor environment.

2. Standard Brewing Steps Explained

① Add Water

Fill to the 116 oz line.
Correct volume ensures the machine runs the proper pressure and temperature curve.

② Add Hop Extract — Stir Well

Ensures consistent hop flavor and prevents uneven bitterness.

③ Add Malt Extract — Mix Thoroughly

Undissolved malt can cause slow or incomplete fermentation.

④ Add Yeast — Do Not Overmix

Sprinkle yeast on top, then lightly stir if needed.
Avoid heavy mixing, which introduces oxygen and disturbs yeast activity.

⑤ Seal the Keg & Start Brewing

Insert both tubes securely and start brewing via RFID or manual selection.

3. Fermentation Timeline: What’s Normal?

Day 1–2: Low Pressure (0–2 psi) Is Normal

Yeast is hydrating and beginning to activate.

Day 3–5: Active Fermentation

• Pressure rises quickly (typical: 15–24 psi).

• Foam forms on the surface.

• PRV may vent slightly — this is expected.

Toward the End of Fermentation

• Foam decreases.

• Pressure stabilizes around 15–24 psi.

• Beer begins to clarify.

Cooling Stage

• Pressure may drop slightly — normal.

• CO₂ dissolves into the beer, improving carbonation.

4. Tips for Better Results

• Keep the keg still once fermentation starts.

• Do not open the keg or remove tubes during fermentation.

• Use CO₂ for sampling (never open the lid).

• Maintain a steady room temperature (20–25°C).

• If experimenting, adjust only one factor at a time.

5. Avoid These Common Mistakes

• Incorrect water volume

• Aggressive stirring of the yeast

• Brewing in a very cold room

• Loose tube connections

• Expecting pressure too early in the process

6.Reference video：