I have a recipe that has just over 7kg of grain but use a robobrew. That amount of grain is too much for the robobrew. Was just wondering if splitting the brew to say 2x3.5kg grain and 15 lt strike water and 2 lt sparge. then do the brew twice and combine for the final boil. would be a long brew day but possibly a way to do a big brew. What are peoples thoughts on this ?