---
title: "Head Transfer Mode: Bottling and Canning"
url: https://fizzwizz.ca/head-transfer-mode/
date: 2026-10-05T21:43:15+00:00
modified: 2026-10-05T21:43:15+00:00
lang: en_US
---

# Head Transfer Mode: Bottling and Canning

## The mode

Once carbonation is complete (target pressure and tank pressure matching), switch the FizzWizz into **head transfer mode**. The CO2 input connects directly to the arm fitting, and CO2 flows from the regulator through the arm separator straight into the **headspace**.

## Why it matters

The unit holds head pressure absolutely steady, with no drifting. That matters because if head pressure drifts, your **bottle fill levels go up and down** with it.

## The numbers

Head pressure defaults to **15 PSI**, which is what most bottling lines want to run. Adjust it up or down as needed. During the entire filling process, the head pressure varies by about **0.02 PSI**. The moment pressure dips below setpoint, CO2 flows in to restore it, then settles just above.

Consistent head pressure means consistent fill levels, batch after batch.

**Packaging day is where carbonation quality pays off.** [Contact us](/contact/).