Before browsing the shop and adding products to your cart, please ensure you are in the correct shipping region. OK

My Account

Cart ( )

Grainfather G70


The original, all grain brewing system is now bigger and better. 

If you’re looking for Grainfather quality in a larger capacity with app integration and smart brewing technology, the G70 is your true brewing companion. Fully compatible with our Conical Fermenter and Glycol Chiller for the ultimate advanced brewery setup.

G70 Product Deep Dive

Availability In stock

Just like the Grainfather G30, the G70 is your true brewing companion when it comes to making beer from grain. Thanks to the 70L capacity, homebrewers can now produce more beer to share or commercial breweries now have a unit that's small enough for pilot testing. It also has a smart controller with built-in wireless connectivity and mobile app integration for step-by-step remote controlled brewing. The G70 gives you everything you need in one compact package that can be used virtually anywhere. 


Smart control with built-in wireless connectivity

Wireless control is a built-in feature where you can use your mobile device as a remote control. When connected to the Grainfather App, you can access a suite of brewing tools, recipes and calculators, which you can take with you wherever you go. You can also use the app to automate mash schedules and multitask without losing any of the hands-on brewing fun.

You don’t have to use your mobile device as a remote control. If you prefer manual control, the smart controller has a colour LCD screen with magnetic mounting, making it easy to use and view from all angles.    

70L preboil capacity

This is our biggest Grainfather to date. Achieve a maximum preboil volume and you’ll be able to transfer 60L of beer into your fermenter with up to 7.5% ABV finished beer. Perfect for homebrewers who want to produce more beer to share, or commercial breweries who are serious about recipe development with their pilot batches.  

17kg max grain bill and conical base

The G70 is built for big grain bills with the capacity to hold up to 17kg worth of grains. With a conical base for maximum brewhouse efficiency, you’ll also be able to get the expected gravity from the grains poured into your unit. 

PID heating control

This feature allows you to produce better, repeatable beer through accurate temperate control during mashing. With a large conical heating element that covers 80% of the base surface, heating is efficient and hot spot/scorching is reduced. Automatic heat sensors and safety cut-out are also integrated for dry boil protection. 

Clean in place (CIP) capability

Cleaning after a brew session has never been so quick and easy. With CIP capability, there are minimal parts that need to be removed and individually cleaned. Every G70 has a cleaning filter included, which you can install when needed. Simply add your cleaning solution, run water through the unit and let it drain.   

Large Counter Flow Wort Chiller

Like the G30, the G70 also comes with a Counter Flow Wort Chiller. To achieve similar cooling times, the chiller for the G70 is now also bigger and comes with a more powerful pump. It still has two connection points – one for the Grainfather and the other connection for the cold-water tap. Once connected, hot wort is then pumped through the copper inner coil while the cold water is pumped through the outer in the opposite direction, providing instant and efficient heat exchange to cool your wort. The cooled wort is then pumped directly into your clean, sterile fermenter. This method of cooling and transferring provides a highly sanitary transfer.

Rolled edge mash plates and large dual-stage hop filter

No more silicone seals. Both mash plates now have a rolled edge with a smooth finish, making them more robust, hard-wearing and easy to install.
The dual-stage hop filter provides a large surface area to allow for a hopping rate of up to 1.5kg, which also reduces pump load and blockages.

Integrated sight glass

Volume readings during sparging are easy thanks to the sight glass. Instead of trying to judge the level of your preboil, you can easily sparge until you reach preboil volume. It’s also easy to clean after every brew. The sight glass cap can be replaced with the sight glass cleaning barb to easily recirculate a cleaning solution.  

Mash recirculation hose and barb

With convenient side entry and push fit application, the mash recirculation hose is easy to install and remove, making mashing more efficient. It also improves heating efficiency as the recirculation hose is retained under the glass lid.   


We’re a dedicated and knowledgeable team who are passionate about helping our customers get the most out of their system. We can assist you with any brewing related queries, no matter how technical. We’re also confident that our products will produce professional, craft brewery-like results. That’s why every G70 comes with a signature Grainfather 3 year warranty. If purchased directly from the Grainfather website, your G70 also comes with a 30-day satisfaction money back guarantee.

G70 Product Deep Dive

View the G70 instructions online


  • Grainfather G70
  • Counter Flow Wort Chiller
  • Mash recirculation hose
  • Lifting bracket


Packaged size: 90.5cm (h) x 62cm (w) x 57.5cm (d)

Net size: 83cm (h) x 53cm (w)



Gross weight: 46.5kg (102.5lbs)

Net weight: 36.5kg (80.5lbs)



Capacity - Max preboil volume: 70L (18.5 US gal)

Batch volume - Max: 65L (17.2 US gal). Min: 40L (10.5 US gal)


Grain Weight (Dry)

Maximum: 17kg (37.5lbs)

Minimum: 8kg (17.6lbs)

Note: Additional micro pipework will be required for min grain weight


Steel Grade

Boiler: 304

Grain basket: 304


Steel Thickness

Boiler: 0.8mm

Grain basket: 0.8mm


Power Requirements

NZ, AU, EU, SA, US, CA: 3300 Watt, 220-240 V, 50Hz/60Hz

UK: 2900 Watt, 220-240 V, 50Hz

Note: The G70 requires a 15 amps socket, except in the UK (13 amps)     


Power Cable Length

NZ, AU, UK, EU, SA: 2.5m

US, CA: 1.8m


Sight Glass

Clean in place (CIP) removable cap

Material: Stainless outer cover, Polycarbonate inner



NZ, AU, EU, SA, US, CA: 3150W power, 380mm diameter

UK: 2750W power, 380mm diameter


Temperature probe       

Type: NTC type

Location: Boiler base



Power: 32W

RPM: 2600 (50Hz)/3000 (60Hz)

Heat rating: 120C

Max capacity: 27L per min (50Hz)/32L per min (60Hz)

Max unit flow rate: 6mL-1

Voltage: 220/240V

Frequency: 50/60HZ


Recirculation Pipe

Connection type: Hosebarb

ID: 10mm


Thermal Protection

Automatic software cutout, self resetting hardware cutout and backup thermal fuse


Mash Tun Dead Space Volume

6.8L (1.8 US gal)


Boil-Off Rate     

4L (1.1 US gal) per hour


Counterflow Wort Chiller Cooling Performance

+5°C (+41°F) from cooling (ground) water temperature at a flow rate of 3L (0.8 US gal) per min*


*Final wort temperature and cooling time will depend on the temperature of your local tap water.



Wireless control via Grainfather Community App

Required Specs for App:


Hardware: iPhone 5 or higher

Software: iOS10 or higher. Must have Bluetooth 4.0 or higher


Hardware: Android 5.0 (API Level 21 - Lollipop) or higher

Software: Must have Bluetooth Low Energy (LE)/Bluetooth Smart



3-year faults and defects

Write Your Own Review
You're reviewing:Grainfather G70
Your Rating