Grainfather – brewing systems, fermenters and glycol chillers

Grainfather is a New Zealand brand of brewing equipment made for all-grain homebrewers. Brewshop stocks the full Grainfather range: the G30v3, G40 and G70v2 brewing systems, conical fermenters, glycol chillers, a grain mill, sparge water heaters and spare parts.

Choosing Grainfather equipment

Batch size: The G30v3 has a 30 litre capacity, the G40 brews up to 40 litres, and the G70v2 holds 70 litres pre-boil for 60 litres into the fermenter.
Control: The G40 and G70v2 connect wirelessly to the Grainfather app. The G30v3 is controlled from the app on iOS and Android, and over WiFi with the GCAST Bluetooth WiFi Bridge.
Fermenting: The GF30 Conical Fermenter Pro has a built-in WiFi controller, heating element and cooling jacket. The stainless SF50 takes up to 45 litres of wort and suits the G30 and G40.
Cooling: The GC2 and GC4 glycol chillers hold fermentation temperature in the Conical Fermenter. The GC4 cools down to 4 °C and has a 6 litre glycol tank.

Grainfather brewing systems compared

Model	Volume	Features
G30v3	30 litres	Third generation G30, with counterflow chiller and app control
G40	Up to 40 litres	304 stainless steel, conical bottom, WiFi, counterflow chiller
G70v2	70 litres pre-boil, 60 litres into the fermenter	Perforated malt pipe, sight glass in the recirculation pipe, PID temperature control

The full Grainfather range

This page shows everything from Grainfather. For the brewing systems with accessories and parts only, see Grainfather brewing systems.

Fermenters – GF30 Conical Fermenter Pro and SF50, with cooling kits, Pressure Transfer, lids and O-rings.
Glycol chillers – GC2 and GC4, the Glycol Chiller Adapter Kit (GCA) and propylene glycol.
Brewing accessories – Sparge Water Heaters (18 and 25 litres), steam condensers, whirlpool arm, Wortometer and the Electric Grain Mill.
Spare parts – pumps, grain plates, malt baskets, lids, controllers and overflow parts.

Grainfather FAQ

Which Grainfather brewing system should I choose?

Choose by how much beer you want per brew day. The G30v3 suits most homebrewers brewing around 20–25 litres. The G40 adds volume and WiFi, while the G70v2 is built for 60 litres into the fermenter.

How does this page differ from Grainfather brewing systems?

This brand page shows the whole Grainfather range, including fermenters, glycol chillers and the grain mill. The Grainfather brewing systems page shows only the machines with accessories and spare parts.

Can I control Grainfather from my phone?

Yes. The G40, G70v2 and GF30 Conical Fermenter Pro connect to the Grainfather app over WiFi. The G30v3 is controlled from the app, and over WiFi with the GCAST Bluetooth WiFi Bridge.

Do I need a glycol chiller for the Conical Fermenter?

The cooling jacket on the Conical Fermenter must be connected to a glycol chiller to cool the wort, such as the GC2 or GC4 with the Cooling Connection Kit. The SF50 uses the Glycol Chiller Adapter Kit (GCA).

Can I get Grainfather spare parts?

Yes. We stock pumps for the G30 and G70, grain plates, O-rings, lids, controllers, filters and overflow parts, plus seals and bungs for the Conical Fermenter.