Grainfather G40 Controller — Advanced Brewing Controller for G40 All-In-One System
The Grainfather G40 Controller is the nerve centre of the Grainfather G40 all-in-one brewing system — a purpose-built advanced controller that puts precise, programmable control over your entire brew day at your fingertips. Designed exclusively for the G40 and fully integrated with the Grainfather Connect app, this controller transforms what could be a complex, hands-on process into a streamlined, repeatable brewing experience without sacrificing the control that serious brewers demand.
What sets the G40 Controller apart from basic temperature controllers and third-party alternatives is its deep, native integration with the Grainfather ecosystem. Programme full multi-step mash profiles, set precise boil power levels, schedule timers, and monitor your brew remotely — all from the controller interface or directly through the Grainfather Connect app over Bluetooth. The controller manages heating element power, pump operation, and temperature targeting in a single unit, eliminating the need for separate timers, manual pump switching, or temperature probes cobbled together from different systems. Every parameter of your brew day is visible, adjustable, and logged in one place.
Whether you're following a complex decoction-inspired step mash, holding a precise protein rest, or simply dialling in a single-infusion brew with consistent results every time, the G40 Controller gives you the precision and confidence to brew to recipe — not to approximation.
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Key Features
- Full Grainfather Connect app integration — Bluetooth control and monitoring
- Programmable multi-step mash profiles — temperature, time, and rest control
- Adjustable boil power settings for controlled, consistent boils
- Integrated pump control — no separate switching required
- Real-time temperature monitoring and adjustment
- Purpose-built for the Grainfather G40 — plug-and-play installation
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Usage
Best suited for: Single-infusion mashing, multi-step mash profiles, step mashing, decoction-inspired brewing, precise boil control, automated brew day management
Compatible with: Grainfather G40 all-in-one brewing system, Grainfather Connect app (iOS & Android)
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Quick facts
Brand: Grainfather Compatible system: Grainfather G40 Connectivity: Bluetooth — Grainfather Connect app Control: Temperature, pump, boil power, mash timers Platform: iOS & Android Use: Mash control, boil management, full brew day automation