Technical Specifications - G70² Grainfather G70v2 Tech Specs.pdf 400 KB Download Download PDF at the bottom of the article, for the G70² All Grain Brewing System tech specs. Related articles Technical Specifications - G70 Instructions G70² What are the minimum and maximum grain bills that can be brewed with on the G70? Technical Specifications - G40 Cross Section of the G70 / G70² Base