OPERATION
1. Make sure the silicon hose has been inserted into the top of the Grainfather’s lid. Once
assembled correctly as per the previous instructions, keep the cold water source tap
off, then press the ‘pump’ button on the Grainfather Connect controller.
2. After roughly 2 minutes, the chiller and temperature reader would have been sanitised.
Turn the tap that is connected to the chiller water inlet on. By a rough estimation adjust
the tap flow rate to 1.5 to 2.5 L/min (0.4 - 0.6 US Gal/min). You can check this prior to
turning on the tap by filling a measuring jug. The temperature reading on the
Grainfather Controller should begin to drop. After approximately 2 minutes more, the
temperature reading should have stabilised.
3. The wort outlet temperature (read from the Grainfather Controller) should ideally be as
close to the desired fermentation temperature as possible (generally below 18°C (64°F)).
If the temperature reading is too high (above approximately 28°C (82°F)) adjust the
tap to achieve a greater water flow rate. It may take up to two minutes for the wort
outlet temperature to re-stabilise at a lower temperature. If the temperature is still too
high, you may further increase the water flow rate further*.
4. Once the temperature reading has stabilised low enough, you are ready to begin
transferring the wort into your sanitised fermenter. Press the ‘pump’ button on the
Connect controller to turn off the pump. Take the wort outlet hose and insert it into
your fermenter. Take care to have your fermenter situated close to the Grainfather for
this step because the length of the temperature probe cable limits its maximum
distance from the Grainfather. Press the ‘pump’ button again to begin the transfer
of wort.
*The lowest achievable wort outlet temperature will depend on how low your water inlet
temperature is. For example, if your water temperature is 27°C (80°F)
then regardless
of how great your water flow rate is, the wort outlet temperature may not drop below
31°C (88°F).
www.grainfather.com
R
eorder: 1
0328_V2
insert temperature
probe here (contains
removable 12 mm (0.5")
silicon hose section to
use as necessary for fit)
Wortometer
connect to
chiller wort outlet hose
connect to
clear silicon hose
