GRAINFATHER G70 All in One All Grain Brewing System Instruction Manual

G70 All in One All Grain Brewing System
Instruction Manual

CHEERS, NICE TO MEET YOU
G SERIES
INSTRUCTION MANUAL

LET’S BREW BIG TOGETHER

THANK YOU FOR CHOOSING
THE GRAINFATHER G702

Get started by following these instructions on how to assemble and use your G702. We recommend reading the following safety information before use.
Please also find enclosed, advice for cleaning and storing your G702.
WARNING! (NORTH AMERICA 220V ONLY)
Please check your unit rating label for the voltage. If your unit is a North American 220V product, the power cord, control box and boiler body included in the box are designed to be used together with a 220V supply. Using any of these components with another product may result in hazards and equipment damage.
SOCKET GUIDE (NORTH AMERICA 220V ONLY)

power cord supplied in-box.
| 3-pin workshop and power tools supply.| Brewing system is compatible by using an adapter that includes a ground connection and has appropriate electrical certification.
| 3-pin laundry dryer supply, most common installation prior to 1996.| This power supply socket is NOT SUITABLE for use with the brewing system. This socket provides hot-hot-neutral connections. The brewing system requires a ground connection to perform safely in the event of an electrical fault.
| 4-pin modern laundry dryer supply, commonly installed after 1996.| Brewing system is compatible by using an adapter that includes a ground connection and has appropriate electrical certification.
| 4 pin electric oven supply.| Brewing system is compatible by using anadapter that includes a ground connection and has appropriate electrical certification.

SAFETY INFORMATION

1. Read all instructions before using the Grainfather G702.
2. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or a qualified person to avoid a hazard.
3. This appliance is intended to be used in household and similar applications such as staff kitchen areas in shops, offices, and other working environments; farmhouses and by clients in hotels, motels and other residential type environments; bed and breakfast type environments; catering and similar non-retailed applications.
4. The appliance is for indoor use only.
5. The appliance is not suitable for installation in an area where a water jet could be used.
6. The appliance must not be cleaned by a water jet.
7. The appliance must be in an upright position at all times when in use.
8. The appliance is only to be installed in locations where it can be overseen by trained personnel.
9. The installation of a residual current device (RCD) having a rated residual operating current not exceeding 30 mA is advisable.
10. The A-weighted sound pressure level of the appliance is below 70 db.
11. Always unplug the unit before cleaning, during storage or in the event of a fault.
12. The boiler, lid and pipes may reach temperatures of up to 100°C (212°F) and therefore must be handled with caution. Never move the unit while it is in operation.
13. Handles on the side of the unit are only meant for transportation once the unit is empty and in a cooled, non-use state.
14. Please note that a two-person or mechanical lift is required when using this system. A single person lift may lead to serious injury.
15. Access of the service area is restricted to persons having knowledge and practical experience of the appliance. The maximum  and minimum ambient temperatures for normal use of the appliance is: 40°C (104°F) to -20°C (-4°F).
16. To protect against fire, electric shock, and injury, do not immerse cord/plugs in water or other liquid.

THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN EUROPE:

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
• Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN THE UNITED KINGDOM:

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental  capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.

Cleaning and user maintenance shall not be made by children without supervision.

• Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
• The fixed wiring insulation must be protected, for example, by insulating sleeving having an appropriate temperature rating.

THE FOLLOWING STATEMENT APPLIES TO GRAINFATHER PRODUCTS SOLD IN AUSTRALIA AND NEW ZEALAND:

• This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance  by a person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.

NOTE: Further to the safeguards listed above, we do not recommend the use of this product by children. Not following the safety information above could result in serious injuries and may void your warranty.

ANATOMY   DIAGRAM & PARTS LIST

NOTE: The full spare parts list for the G70²  is available online: help.grainfather.com

PRE-BREWING ASSEMBLY

Before use, we recommend cleaning your G70²  and all of its components using the Grainfather High Performance Cleaner.
For detailed cleaning instructions, see page 14.
1. INSTALLING THE FILTER
Take the hop filter (4) and place it into the base inside the G70²  body (6). It should be a tight fit and you’ll need to apply some pressure to make sure that it is securely in place.
2. ATTACHING THE CONTROLLER
Remove the G70²  controller (5) and the power cord from its packaging and place the controller securely on the bracket on the front of the unit. Next, remove the small cap from the M16 socket (7) on the front of the G70² . Plug the M16 cable (5) into the socket, making sure that the right-angle connector is facing upwards. Finally, tighten the securing nut. 3. CONNECTING TO POWER
Take the main power cable and plug it into the base at the back of the G70². Next, plug the other end of the cable into the professionally installed 15A (13A in UK) power socket. Turn on the master switch at the base of the G70² body.
The controller should now receive power and the display will turn on. If this does not occur, please check that both the M16 controller cable and the main power cable are securely connected.

THE

CONTROLLER

The G70² smart controller has built-in wireless connectivity, allowing you to use your mobile device as a remote control. Connect to the free GrainfatherApp for step-by-step brewing and access bazillions of recipes.

CONNECTION SETUP
When you first turn on the controller, you will be greeted with the connection setup screen. Press ‘set’ to go to the default screen.
DEFAULT SCREEN
The default screen shows the current temperature and target temperatures, unit symbol (Celsius or Fahrenheit), timer (when active), wireless connection and status symbol.
MAIN MENU
This screen displays the main menu options:
• Network configuration • Settings • About

NETWORK CONFIGURATION
On this screen, you can add a new wireless network and connect your G70² controller. To add a network, select ‘add new network‘, then follow the instructions on the next page.
If you’ve previously connected your G70² to other networks, you can also clear these here.
SETTINGS
This screen displays the main settings:

• Power control mode: This mode allows for manual control of the power from the element in 5%  increments. This can be used to control the power when distilling. Simply press ‘power control’ and  use the up and down button to control the power.
  NOTE: This can also be controlled through the Grainfather App. Choose between manual or power mode on the main app screen and use the up and down buttons on the app.

• Change units: Choose between Celsius or Fahrenheit.

• Calibrate temperature: The G70² has two probes  that are NTC (negative temperature coefficient) type temperature sensors. An NTC thermistor uses electrical resistance properties of ceramic or metal composites to measure temperature. These sensors are accurate to 0.050°C (0.025 °F). This feature allows for an offset to be applied to the reading of the temperature probe if it is inaccurate. This should only be used if the temperature probe is compared to a certified calibrated thermometer which has a resolution of +/-0.010°C (0.005°F).

• Boil temperature: Here you can adjust your boiling temperature based on the elevation of your brewing location. To use this function you can find the altitude of your location online, and also the boiling point of water at that altitude. Change the boil temperature from 100°C (212°F) to your new boil temperature.

• Buzzer settings: Within this section you can select silent mode for your controller. When enabled, you’ll  no longer hear beeping to alert you when you’ve reached the next step during your brew.

ABOUT
This is where you can find details about your device. When connected to the internet, you can also check  and install new updates to the G70² controller from here.

WIRELESS CONTROL & APP

INTEGRATION

For the ultimate brewing  experience, connect your controller to the Grainfather App.

1. Make sure that your wireless network reaches the location where you will be using your G70 ².
   While a wireless connection can be made over long distances, we recommend placing your unit within 10m (30ft) of the wireless router. If you wish to use your G70 ²
   further away, we recommend using a wireless range extender to avoid connection issues.

2. Download the Grainfather App on your mobile device from the App Store or Google Play Store and register an account if you’re a new user.https://grainfather.com/brewing-app/

3. When you first switch on the controller, you will be greeted with the connection setup screen. If you do not see the screen below, then press the ‘set’ button on the controller and go to ‘network config’ then ‘add new network’. Once on the connection setup screen, open the Grainfather App on your mobile device.

4. Once in the app, navigate to the equipment screen. The equipment screen shows all the brewing and fermenting equipment that you have set up on your account.
   NOTE: The following screen layouts depict an iOS device and may differ slightly for Android.

5. To add a new device, tap on the ‘+’ icon on the bottom right of the screen and select ‘brewing equipment’.

6. Select ‘Grainfather’ on the list of brands and subsequently select ‘Grainfather G70² ’ on the list of equipment.

7. On the device setup screen tap ‘ready’. Your mobile device may now request certainpermission(s) required to connect with the G702 and may vary for different devices.
   Accept all requests

8. FOR ANDROID USERS
   If setting up the G702 via an Android device, choose your controller in the list (see step  10 next).

9. FOR iOS USERS
   If setting up using an iOS mobile device, follow the instructions on the screen to connect your mobile device to the G702 .  Once the connection is established you will receive a notification on your mobile device. Tap the notification to return to the Grainfather App. You will automatically  return to the device setup screen.

10. Once your phone has successfully connected to the G702 (Android and iOS), select your wireless network from the list and enter in your network password, and then tap ‘connect’. Once completed, add a name for your device and press ‘done’.
    

11. Set up is now complete and you will return to the equipment screen. Select your Grainfather G702 to enter the controller interface.

12. On the G702 controller, you will be prompted to grant permission for remote control. Press the ‘set’ button and select ‘yes’. The G702 is now ready for you to start controlling your brew session via your mobile device.

NOTE: This permission request for remote control is in accordance with IEC/EN 60335-1 and will appear each time you connect to the G702 via a mobile device.
Within the Grainfather App you can now select recipes or even create your own. You can also use the step-by-step brewing system to brew confidently.

BREWING ON THE

You are now set up and ready to start brewing! Follow these instructions to guide you through your brew on the G70².

1. ADD THE MASH WATER
   Place your G70² on a flat, stable surface before you  start brewing. We recommend positioning your G70² on  the floor due to heavy lifting that is required later in the brewing process. Add the volume of mash water required by your recipe – you can use the advanced calculators available on the Grainfather App.
   NOTE: Ensure that the recirculation ball valve is open and the lower ball valve is closed during this step to avoid a pump airlock.

2. SET THE MASH/STRIKE TEMPERATURE
   Using the G70²controller or your mobile device, set the  required mash temperature and press the ‘heat’ button to begin heating. Place the lid on the G70² to reduce the
   heating time. At this stage, if your G70² is connected to the  Grainfather App, you can run your brew session remotely from your mobile device.

3. ASSEMBLE THE GRAIN BASKET
   Place the grain plate (14) inside the grain basket (15)  and ensure that the plate is sitting firmly on the bottom  of the basket.

4. INSTALL THE GRAIN BASKET
   Slowly insert the assembled grain basket into the G70².  Ensure that the top of the grain basket rests flat on the  support ring (2).

5. ADD GRAINS AND STIR
   Once your water reaches the set temperature, slowly add the grain to the grain basket, stirring well to avoid any dry clumps.
   NOTE: The G70² does not require a top plate or an overflow pipe in the basket. The grain basket now has extra drainage holes, removing the need for these parts.
   You can choose to use a top plate when brewing higher ABV beers if you will be maximising the amount of grain used in the G70² . In this case, the top plate can help to keep grain in the basket if the wort levels are too high and stops any wort from draining through the lifting bar holes on the side of the basket. An additional grain plate can be purchased on the online Grainfather Store or at your local retailer.
   The maximum grain weight that the G70² basket can hold is 17kg (37lb). However, this is affected by grain crush, type and variety, and it may be easier to manage this by using an additional grain plate on top of the mash. If you’re unsure how well your particular grain bill will fit then we recommend mashing up to 16kg (35lb).

6. INSTALL THE RECIRCULATION HOSE
   Ensure that the hose is securely attached to the recirculation barb (13) and insert the barb into the recirculation opening on the side of the G70² body. Rest the other end of the hose on the top of the grain.
   

7. RECIRCULATE YOUR MASH (WORT)
   Ensure that the ball valve (11) on the top of the recirculation pipe (11) is open. Then, to begin  recirculating, press the ‘pump’ button on the controller or via the Grainfather App. If recirculation doesn’t start, press the ‘pump’ button to turn it off, blow into the hose to clear the airlock, then restart the pump.
   TIP: To save time, we recommend preparing your sparge water during your mash.

8. LIFTING THE GRAIN BASKET
   When the mash has finished, turn off the pump and remove the recirculation hose. Close the ball valve on the recirculation pipe and insert the lifting bar (12) into the holes inside the grain basket. Lift the grain basket and then turn it 45° so that the feet at the bottom rest on the basket support ring (2).
   CAUTION
   A TWO PERSON or mechanical lift  is required when using this system  as the basket can weigh up to 60kg  (132lb) during use. Please do not attempt to lift  by yourself as this could lead to serious injury.

9. SPARGING AND BASKET REMOVAL
   Allow the mash liquid to drain into the boiler. Then, gently pour the sparge water evenly over the grain until the water is a few millimetres above the grain and allow to drain.
   TIP: To save time, you can now start to increase the  temperature in preparation for the boil.
   CAUTION
   BE VERY CAREFU L not to twist the basket  while it’s in the sparge position as it could knock  it off the support ring. If the sparge is stuck and  not draining, then remove the top grain plate  (if applicable), lower the basket and slice the grain bed with a stainless steel paddle or similar. Cut through the stuck grain from the centre towards the outside repeatedly until it loosens. Then, return the basket to the sparge position and replace the top grain plate (if applicable) to continue sparging. Always ensure that the support ring fits tightly into its groove and is held in place by the support ring retainer (3). If you remove the support ring for  cleaning, ensure that it is correctly reinstalled along  with the support ring retainer. Once the sparge has finished, refit the lifting bar to the grain basket to lift and remove the basket from the boiler.
   NOTE: If you are using a large grain bill, we recommend scooping some of the grain from the basket to reduce the weight before lifting.

10. BOIL YOUR WORT
    After removing the grain basket, complete the boil and add the hop additions required by your recipe.
    CAUTION
    Ensure that the unit does not reach the boil while the grain basket is still in place.  During the boil, do not fit the glass lid as it  may cause a boil over.

COOLING WITH THE COUNTERFLOW WORT CHILLER

The G70² includes a counterflow wort chiller (16). This has been designed to efficiently cool your wort, and allow easy and sanitary transfer directly into a fermenter.
CLEANING
Before your first use, run cleaner through the counterflow wort chiller. For detailed instructions on how to clean your counterflow wort chiller, please refer to the CIP (Cleaning in Place) section on page 14. Also, ensure that your fermenter is clean and sanitised before cooling and transferring your wort.
FLOW RATES
The maximum flow rate of water through the counterflow wort chiller is 6L (1.6 US Gal) per minute. Do not exceed this flow rate as it may cause damage to the product.
The maximum flow rate of wort through the counterflow wort chiller is 4L (1 US Gal)/min. At this flow rate, with a tap water temperature of 20°C (68°F), the wort in the fermenter should be at approximately 25°C (77°F). You can get the wort in your fermenter close to 3°C (37°F) above your tap water temperature by reducing the flow of the wort through the counterflow wort chiller and adjusting the 1/2” ball valve (11).

1. At the end of the boil turn the heating element off.  Create a whirlpool by stirring the wort vigorously with  your paddle. Be careful not to dislodge the hop filter.
   NOTE: A moderate whirlpool may automatically form due to the force of the pump.

2. Place the counterflow wort chiller on a table or bench and push fit the hose barb on the end of connection A into the recirculation opening on the inside of the G70² body.
   NOTE: Ensure that none of your wort or water tubes are sitting underneath the counterflow wort chiller. The water tubes should be coming out from the top. If a tube is squashed or there is a kink, this will cause a pressure build up and liquid will not be able to pass through.

3. The coloured hoses are where the cold water enters  and hot water exits. To allow cold water to enter, attach the blue hose to your tap using your tap adapter set (18).
   The red hose is where the hot water drains out as it flows through the counterflow wort chiller. Connection B is where your wort exits the counterflow wort chiller.
   TIP: Collect some of the hot water from the red hose to use as cleaning water after your wort has finished transferring.

4. To sanitise the counterflow wort chiller place connection B into the G70² body. Turn the pump on to recirculate the wort back into the G70² to sanitise the inside of the coil.
   Complete this step without the cold water circulating.
   Recirculate for approximately 1-2 minutes.
   NOTE: The G70² is designed to cool while simultaneously transferring your wort to your fermenter. You should not cool by recirculating into your G70² as this reduces the thermal efficiency.

5. Turn the cooling water on. Once connection B runs cool, switch the pump off and place the end of the hose inside your clean and sanitised fermenter. Always try to keep the fermenter opening covered to avoid contamination while transferring your wort.
   NOTE: Take an OG (original gravity) reading of your cooled wort before adding yeast as per the correct yeast pitching temperature within your recipe. Fit a bung and airlock to the top of your fermenter to keep it safe from contaminants that may spoil your brew.

ADVICE FOR CLEANING & STORAGE

No one really enjoys cleaning, but it’s worth it for great beer!

• After use, the G70 and all of its components  should be cleaned immediately and dried thoroughly. We recommend using the Grainfather High Performance Cleaner as it removes the need for tedious scrubbing. However, all stainless steel components can be cleaned using a conventional, unscented brewing detergent/cleaner.
• Abrasive agents and sponges/brushes could cause scratching and are not suitable for use. Ideally, use a dish brush or soft sponge to clean the unit.
• Do not store in a damp area as this could cause damage to the product.
• Once you have cleaned your equipment, dry, reassemble and store.

CLEANING IN PLACE (CIP)

1. Remove all trub and solids from the G70² by removing the hop filter from the G70² , rinse thoroughly and then put aside. Open the lower ball valve tap and flush the rest of the trub and other remains from the G70². You can now close the lower ball valve tap.
2. Fill the unit with 15L (3.9 US Gal) of water and 1 cap of Grainfather High Performance Cleaner.
3. Heat the water to 60°C (140°F) and use a dish  brush or soft sponge to clean the unit.
4. Attach the counterflow wort chiller and place the connection B hose from the chiller into a 5L  (1.3 US Gal) jug. Once ready, switch the pump on  and let the water run into the jug until the water  clears. Now, place the hose into the unit so the water continues to recirculate and leave for 10-15 minutes.
5. Once complete, switch the heating and pump off, and open the lower ball valve to allow the unit to drain.
6. Once draining has finished, follow steps 2-5 again but this time with clean water to rinse and flush the G70² and counterflow wort chiller.

CAUTION: RISK OF BURNS
Use heat resistant brewing gloves or other suitable gloves during this process.
PUMP CLEANING
We recommend cleaning your pump every 5-10  brew sessions. This process should be done after you’ve cleaned your G70².

1. Turn the unit upside down and remove the four screws on the base of your G70².

2. Using pliers, squeeze and shift the hose clamps away from the pump inlet and outlet.

3. Remove the four screws that hold the pump in place and detach the inlet, and outlet hoses from the pump.

4. Remove the screws holding the impeller housing  to the pump.

5. Remove the top cover of the impeller housing exposing the impeller.
   NOTE: There is no need to expose the magnetic  drive pump.

6. Use a pipe brush or something similar to clean  the impeller and impeller housing.
   NOTE: Do not submerge the pump in water.

7. Dry the components and reassemble the unit.

BREWING NOTES

IMPORTANT SAFEGUARDS
READ AND FOLLOW ALL INSTRUCTIONS
CAUTION – Risk of fires and electric shock.
– Replace only with genuine Grainfather cord set, part No. SJTO.
– Do not immerse in water.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTURE REFERENCE
FOR COMMERCIAL AND INDOOR USE ONLY

WARNING
RISK OF ELECTRIC SHOCK . DO NOT OPEN.
RESOURCES: Check out our YouTube Channel for helpful videos.
For more information, visit our Help Centre: help.grainfather.com

GET IN TOUCH ONLINE: help.grainfather.com/hc/en- us/requests/new
WWW.GRAINFATHER.COM

References

• Your All Grain Brewing Community | Grainfather

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