Imperial Stout Recipe - Mothers Day Imperial Stout and a Half

{"RecipeId":14753,"RecipeTypeId":10,"OriginalRecipeId":2921,"UnitType":"s","IbuFormula":"t","CreatedBy":100912,"Name":"Mothers Day Imperial Stout and a Half","Description":"The MDIS was so good that I wanted to do it again, but I had a lot of problems trying to sparge over 22# of grain in a 5 gallon cooler lauter tun. So I decided to use a different technique (from \"Radical Brewing\", by Randy Mosher) in which I mash half the grain, lauter 4 gallons of it, and mash the other half in that. I\u0027ll then add 2# of 2-row, mash that, and make a lower-gravity stout.","ImageUrlRoot":null,"StyleId":"20C","StyleName":"Imperial Stout","BatchSize":5.75,"BoilSize":6.5,"BoilTime":75,"Efficiency":0.75,"DateCreated":"\/Date(1443653384627)\/","BrewSessionCount":0,"MostRecentBrewSession":null,"Og":1.1031706521739131,"Fg":1.0257926630434782,"Srm":55.2440963550799,"Ibu":58.685641152283722,"BgGu":0.56882107378131419,"Abv":9.9817605978260868,"Calories":366,"AverageRating":0,"TastingNoteCount":0,"Fermentables":[{"Per":"77","Amt":"17","Ppg":"37","L":"1","Use":"Mash","Id":"65645","IngId":"3","Name":"2-Row - US","CustomName":"","Rank":"1"},{"Per":"5","Amt":"1","Ppg":"25","L":"300","Use":"Mash","Id":"65646","IngId":"51","Name":"Roasted Barley - US","CustomName":"","Rank":"2"},{"Per":"5","Amt":"1","Ppg":"32","L":"2","Use":"Mash","Id":"65647","IngId":"78","Name":"Flaked Barley - US","CustomName":"","Rank":"3"},{"Per":"6","Amt":"1.25","Ppg":"34","L":"350","Use":"Mash","Id":"65648","IngId":"53","Name":"Chocolate Malt - US","CustomName":"","Rank":"4"},{"Per":"2","Amt":"0.5","Ppg":"28","L":"500","Use":"Mash","Id":"65649","IngId":"483","Name":"Black Malt - US","CustomName":"","Rank":"5"},{"Per":"2","Amt":"0.5","Ppg":"33","L":"120","Use":"Mash","Id":"65650","IngId":"509","Name":"Crystal 120L - CA","CustomName":"","Rank":"6"},{"Per":"3","Amt":"0.75","Ppg":"33","L":"2","Use":"Mash","Id":"65651","IngId":"580","Name":"Rolled Oats - US","CustomName":"","Rank":"7"},{"Per":"1","Amt":"0.2125","Ppg":"34","L":"60","Use":"Mash","Id":"65652","IngId":"517","Name":"Crystal 60L - CA","CustomName":"","Rank":"8"}],"Hops":[{"Amt":"1","Type":"Pellet","Use":"FirstWort","Min":"75","Day":"0","AA":"12.1","Ibu":"25.9157912489481","Id":"65142","IngId":"18","Name":"Magnum ","CustomName":"","Rank":"1"},{"Amt":"1","Type":"Pellet","Use":"Boil","Min":"60","Day":"0","AA":"8","Ibu":"16.3963344900172","Id":"65143","IngId":"31","Name":"Sterling ","CustomName":"","Rank":"2"},{"Amt":"1","Type":"Pellet","Use":"Boil","Min":"15","Day":"0","AA":"16.1","Ibu":"16.3735154133184","Id":"65144","IngId":"63","Name":"Warrior ","CustomName":"","Rank":"3"}],"Yeasts":[{"Atten":"0.75","Id":"19403","IngId":"253","Name":"Fermentis Safale US-05","CustomName":"","Rank":"1"}],"Others":[{"Amt":"3","Unit":"tsp","Use":"Mash","Id":"12546","IngId":"12","Name":"Gypsum","CustomName":"","Rank":"1"}],"MashSteps":[{"Heat":"Infusion","Temp":"135","Time":"180","Id":"7758","IngId":"1552","Name":"Overnight Rest","CustomName":"","Rank":"3"}],"Steps":[{"Id":"21499","Rank":"1","Text":"Wet crush 1/2 the grain (not the flaked barley or rolled oats)"},{"Id":"21500","Rank":"2","Text":"Mash in the crushedgrain and ~1/2 the flaked barley and rolled oats with 4 gal of 167* F water and 1 tsp gypsum"},{"Id":"21501","Rank":"3","Text":"Next morning, lauter 4 gallons and set aside, keeping warm (167* F if possible)."},{"Id":"21502","Rank":"4","Text":"Lauter 2 more gallons and set aside."},{"Id":"21503","Rank":"5","Text":"Clean out the lauter tun and mash the second half of the grain with the 4 gallons of wort."},{"Id":"21504","Rank":"6","Text":"After an hour, lauter 6 1/2 gallons, first using the 2 gallons from the first batch, then water with 1 tsp gypsum."},{"Id":"21505","Rank":"7","Text":"Bring to a boil and proceed as normal."},{"Id":"21506","Rank":"8","Text":"Crush and mash 2# 2-row with the \"spent\" grain after raising the temperature as necessary."},{"Id":"21507","Rank":"9","Text":"Lauter 6 gallons using 1tsp gypsum and proceed as normal."}]}