Grainfather G30 Graincoat

Grainfather G30 Graincoat – Heat Insulation Jacket

Keep your brew at temperature and protect against accidental contact with the official Grainfather G30 Graincoat. This purpose-made insulation jacket wraps around the G30 boiler to retain heat during the mash, reduce energy consumption, and maintain a consistent temperature — especially useful during cooler months or in unheated brew spaces.

Key Features

• Designed specifically for the Grainfather G30
• 7mm SBR foam construction for effective heat retention
• Polyurethane outer layer — easy to wipe clean
• Machine washable for easy maintenance
• Acts as a heat protection barrier against accidental contact with the hot stainless steel boiler
• Helps maintain a stable mash temperature in cold environments

Specifications

Why Use a Graincoat?

Heat loss during the mash can cause temperature drops that affect efficiency and consistency. The Graincoat minimises this by insulating the boiler, reducing the need for the heating element to compensate — saving energy and giving you more stable, repeatable results. Particularly valuable in garages, sheds, or outdoor brew setups where ambient temperatures vary.

This is an official Grainfather accessory designed for the G30. Not compatible with other Grainfather models.