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Safety warning for North America 220V units regarding power cord, controller, and boiler body compatibility.
Compatibility guide for North America 220V power supply sockets with the brewing system.
Instructions and warnings for safe operation, handling, placement, and electrical safety of the appliance.
Specific safety statements for users in Europe, the United Kingdom, and Australia/New Zealand.
Instructions for fitting the filter (13) with silicone insert (14) and cap (12) into the boiler body inlet pipe nut (15).
Guide on how to attach the controller (20) to the G303 handle and cradle using the temperature probe cord.
Instructions for powering on the G303, downloading the app, and connecting the unit for remote control.
Explanation of the default screen and button functions (PUMP, HEAT, SET, UP, DOWN, MENU) for manual brewing.
Procedure to enter the menu mode by pressing UP and DOWN arrows, and selecting options with HEAT.
Guide to programming up to four steps of a brew day into the controller, including setting temperature and time.
Guidance on adding the correct volume of mash water to the G303 on a stable surface.
Instructions on setting the mash temperature via controller or app and starting the heating process.
Steps to assemble the grain basket by inserting the grain plate (26) into the basket (27).
How to slowly insert the assembled grain basket into the G303, ensuring it rests on the support ring (19).
Instructions for adding grain to the basket once water is at temperature, and stirring to avoid clumps.
Steps to assemble the recirculation pipe (1) with silicone hose (16) and attach it to the safety valve (2).
How to start recirculation, adjust flow rate using the ball valve (4), and clear airlocks if needed.
Procedure to remove the grain basket after mashing using the lifting bar (25) and resting it on the support ring.
Instructions for sparging, draining, and removing the grain basket after the mash.
Guidance on boiling the wort after removing the grain basket and adding hop additions.
Warning about preventing boil overs, especially when using the glass lid during boiling.
Information on automatic reset switches and thermal fuses for units that boil dry.
Initial cleaning steps for the counterflow chiller before first use and general cleaning advice.
Information on wort flow rate, tap water temperature, and resulting wort temperature in the fermenter.
Step-by-step guide on connecting hoses, sanitizing, and transferring cooled wort to a fermenter.
Warning against using the counterflow chiller for continuous hot wort circulation without cooling water.
Detailed steps for cleaning the main G303 unit, including using cleaner, heating, and recirculating.
Safety warning to use heat-resistant gloves during cleaning processes involving hot components.
Instructions for cleaning the pump every 5-10 brew sessions, including disassembly and cleaning of components.
Description of the Alembic Dome & Condenser upgrade for microdistilling with the G303.
Details about the GCAST accessory for connecting the G303 Controller to Wi-Fi and monitoring data.
Information on the WORTOMETER accessory for monitoring wort transfer temperature.
Key cautions including risk of fire/shock, using genuine cord sets, and avoiding immersion in water.
Information on where to find helpful videos, support, and contact details for the Grainfather G303.
The Grainfather G30³ is an all-in-one brewing system designed for home brewers, offering a connected and streamlined brewing experience. It allows users to brew up to 40 pints of beer at a time, providing a comprehensive solution from mashing to chilling. The system is built with a focus on ease of use, precision, and integration with modern technology, making it suitable for both beginners and experienced brewers.
The primary function of the Grainfather G30³ is to facilitate the all-grain brewing process. It combines several key brewing stages into a single unit: mashing, sparging, boiling, and chilling. The system features a smart controller that allows for precise temperature management during the mash and boil, ensuring consistent and repeatable results.
The G30³ operates by heating mash water to a set temperature, after which grains are added to a perforated grain basket. The controller maintains the mash temperature, allowing enzymes to convert starches into fermentable sugars. After mashing, the grain basket is lifted, allowing the wort to drain into the boiler for sparging. The system then heats the wort to a boil, where hop additions are made according to the recipe. Finally, the included counterflow chiller rapidly cools the wort before transferring it to a fermenter, ensuring a clean and efficient brewing process.
The built-in Bluetooth connectivity allows the G30³ to integrate with the Grainfather App on mobile devices. This app serves as a remote control, enabling users to manage their brew sessions, set up step mashing programs, and monitor progress from anywhere. The app also provides access to recipes and step-by-step brewing instructions, guiding users through the entire process. For extended connectivity, the optional GCAST device allows Wi-Fi control and integration with other brewing accessories like the Tilt™ hydrometer.
The G30³ is designed for intuitive and user-friendly operation. The smart controller offers both manual brewing mode and app-controlled brewing. In manual mode, users can set mash steps, delayed heating, and monitor temperatures directly from the unit's display. The controller features buttons for pump control, heating, setting temperatures, and navigating menus, providing flexibility for brewers who prefer a hands-on approach or do not wish to use the app.
The system's design incorporates several features to enhance the brewing experience. The recirculation pipe, connected to a safety valve, ensures even temperature distribution during mashing and prevents pump airlocks. The grain basket, without the need for a top plate or overflow pipe in most cases, simplifies the grain handling process. For higher ABV beers or larger grain bills, an additional grain plate can be purchased to maximize grain capacity and prevent grain from escaping the basket.
The counterflow chiller is a key component for efficient wort cooling. It rapidly cools the wort by circulating cold water through an outer coil while hot wort flows through an inner coil, allowing for quick transfer to a fermenter while minimizing the risk of contamination. The chiller's design also allows for sanitization by recirculating hot wort through it before cooling.
Safety features are integrated throughout the design. The discharge pipe safety valve automatically shuts off flow if the recirculation pipe is not inserted, preventing accidental spills. The boiler includes an automatic reset switch to prevent dry boiling, and a thermal fuse provides additional protection against overheating. The unit is intended for indoor use and requires a suitable power supply, with a socket guide provided for North American 220V products to ensure compatibility and safety.
Maintaining the G30³ is crucial for its longevity and for ensuring sanitary brewing conditions. The manual provides detailed instructions for cleaning all components, recommending the use of Grainfather High Performance Cleaner or Five Star PBW for effective removal of trub and solids. Regular cleaning after each brew session is emphasized, with thorough rinsing and drying of all parts.
The pump, a critical component, requires periodic cleaning every 5-10 brew sessions. The pump cover can be easily removed to access the impeller housing, allowing for cleaning of the impeller and its housing using a pipe brush. The design ensures that the magnetic drive pump itself does not need to be submerged in water during cleaning.
The counterflow chiller also requires cleaning, both before its first use and after each brew. Instructions include running cleaner through it and then flushing with clean water. The chiller can be sanitized by recirculating hot wort through it before the cooling process begins.
For storage, the G30³ and its components should be dried thoroughly and stored in a non-damp area to prevent damage. The support ring, if removed for cleaning, must be reinstalled correctly with its retainer to ensure proper function during brewing. The manual also advises on how to handle stuck sparges and potential valve blockages, providing troubleshooting tips to keep the system running smoothly.
Optional upgrades, such as the Alembic Dome & Condenser for distillation or the Wortometer for precise wort transfer temperature monitoring, are also available, allowing users to expand the functionality of their G30³ system.
General| Power | 2000W |
|---|---|
| Control Type | Digital |
| Connectivity | Bluetooth |
| Voltage | 220-240V |
| Capacity | 30L |
| Material | Stainless Steel |
| Controller | Grainfather Controller |
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