https://www.australianhomebrewing.com.au/Grainfather-Connect-BLUE-TOOTH-All-In-One-Mash-Brewing-System- Australian Home Brewing road tests the Grainfather all in one Mash Brewing System. Step one The Mash – Here we show you how to get the mash started. We have added the water, set the temperature, added the grain , and turned on the pump and the mash begins.