If you want to brew it like a czech. Because of the Maillard reaction involved in the decoction mash, color will be slightly darker than indicated here.
{"RecipeId":23217,"RecipeTypeId":10,"OriginalRecipeId":16245,"UnitType":"m","IbuFormula":"t","CreatedBy":106342,"Name":"Purist Czech Pilsner","Description":"If you want to brew it like a czech. Because of the Maillard reaction involved in the decoction mash, color will be slightly darker than indicated here.","ImageUrlRoot":"/img/r/df/dfd2457b-ad34-4fd6-9b96-955451f7850b","StyleId":"3B","StyleName":"Czech Premium Pale Lager","BatchSize":25,"BoilSize":30,"BoilTime":90,"Efficiency":0.8,"DateCreated":"\/Date(1460640684523)\/","BrewSessionCount":0,"MostRecentBrewSession":null,"Og":1.053490166103902,"Fg":1.0139074431870145,"Srm":3.0349815329666727,"Ibu":38.371715407311257,"BgGu":0.71736018416499392,"Abv":5.1061712562784853,"Calories":179,"AverageRating":0,"TastingNoteCount":0,"Fermentables":[{"Per":"94","Amt":"5","Ppg":"38","L":"1","Use":"Mash","Id":"109585","IngId":"485","Name":"Bohemian Pilsner - DE","CustomName":"","Rank":"1"},{"Per":"4","Amt":"0.2","Ppg":"33","L":"2","Use":"Mash","Id":"109586","IngId":"11","Name":"Carapils - DE","CustomName":"","Rank":"2"},{"Per":"2","Amt":"0.1","Ppg":"37","L":"30","Use":"Mash","Id":"111300","IngId":"2812","Name":"Melanoidin (Weyermann)","CustomName":"","Rank":"3"}],"Hops":[{"Amt":"27","Type":"Pellet","Use":"Boil","Min":"60","Day":"0","AA":"12","Ibu":"31.8716720944389","Id":"111071","IngId":"18","Name":"Magnum ","CustomName":"","Rank":"1"},{"Amt":"25","Type":"Pellet","Use":"Boil","Min":"15","Day":"0","AA":"3.8","Ibu":"4.63706002970446","Id":"111072","IngId":"27","Name":"Saaz ","CustomName":"","Rank":"2"},{"Amt":"25","Type":"Pellet","Use":"Boil","Min":"5","Day":"0","AA":"3.8","Ibu":"1.86298328316793","Id":"111073","IngId":"27","Name":"Saaz ","CustomName":"","Rank":"3"}],"Yeasts":[{"Atten":"0.74","Id":"31874","IngId":"184","Name":"White Labs Pilsner Lager WLP800","CustomName":"","Rank":"1"}],"Others":[{"Amt":"5","Unit":"ml","Use":"Primary","Id":"20606","IngId":"28","Name":"Clarity Ferm","CustomName":"","Rank":"1"}],"MashSteps":[{"Heat":"Decoction","Temp":"70","Time":"20","Id":"14606","IngId":"1619","Name":"Step up","CustomName":"","Rank":"3"}],"Steps":[{"Id":"35319","Rank":"1","Text":"Use water treated with negative osmosis, to reduce mineral levels"},{"Id":"35320","Rank":"2","Text":"Use decoction mashing: remove 1/3 of mash and heat/boil in separate vessel for 20 min."},{"Id":"35321","Rank":"3","Text":"Add to main wort, raising temperature to 65 C"},{"Id":"35323","Rank":"4","Text":"Boil wort for 90 min."},{"Id":"35324","Rank":"5","Text":"Min. 2 ltr. Yeast starter. OG: 1.040"},{"Id":"35325","Rank":"6","Text":"Pure oxygen for 1 min. before yeast pitching"},{"Id":"35326","Rank":"7","Text":"18-21 days at 11 C. 3 days at 20 C."}]}