How should my G30 Rolled Plate be sitting in my G30 unit ? These are designed to sit on top of the grain bed during mashing, so this should be slightly lower than the level of mash water in the basket. Related articles How should I store my Grainfather Equipment for long-term storage? What are the minimum and maximum grain bills for the G30? What should my Grainfather Electric Grain Mill gap size be set to? What do the settings mean? Firmware V5.2 (52) Video - Quick Guide to Using the Delayed Heating Feature for the G70