WILLIAMSWARN BrewKeg10, User Manual

STAGE D: 24 hours after second clarification. Note 

compacted layers and clear beer that appears in top 

of sediment bottle.

STAGE C: After first clarification.

STAGE B: Fermentation Day 4.

STAGE A: Fermentation Day 1. Close inspection will 

show many fine bubbles rising from the yeast.

Fig 4: Sediment Bottle Activity Phases

Ale – left bottle. Lager – right bottle.

8

USER GUIDE

ADJUST

There are two key processes in the adjust phase: 
Fermentation and Clarification.

FERMENTATION

01. 

Attach the WilliamsWarn Pressure Gauge to the 
gas port (marked with a ‘G’) on the BrewKeg10

TM

lid to monitor pressure through the fermentation 
and clarification process. You will want your fer-
mentation to read 1.5 bar (22 psi) after 24 to 36 
hours and then, ideally, maintain this pressure. 
It is good practice to remove the pressure gauge 
once you are comfortable with the pressure 
attained in your BrewKeg10

TM

 and re-attach to 

check as required. Please review the 

APPENDICES

for options relating to fermentation pressure. 

02. 

Adjusting the VPRV pressure set point: If 
required, once your BrewKeg10

TM

 contains 

CO

2

 pressure from yeast activity (after 24-36 

hours), you may increase the pressure set point 
by turning the VPRV valve clockwise or you 
can decrease the set point pressure by turning 
the VPRV valve anti-clockwise. You may relieve 
pressure by pressing the silver button in the 
centre of the VPRV valve. 

NOTE: Removing too much pressure quickly while 
the ferment is in full swing could result in foaming out 
of the VPRV. 

03. 

Maintain fermentation temperature between 
18

-28ºC (65-82ºF) for approximately 4 days 

or until fermentation has completed. 

Note: A completed fermentation can take longer 
for higher alcohol beverages and take less time with 
certain yeast strains, so 4 days is a guideline. A lack of 
yeast activity appearing in the sediment bottle is the key 
indication as to whether a fermentation has complete. 

04. 

Check your sediment bottle for activity daily.  

05. 

It can be useful to shine a torch through the side 
into the top, clearest part of the sediment bottle 
to assess activity. The activity in the sediment 
bottle will go through various stages as the 
beverage ferments and clarifies: 

A. 

Yeast activity, lots of fine bubbles.  

B. 

Yeast sediment compacted, no activity.