I have done a couple of kits now and I believe I am ready to do a recipe. For my first recipe I am doing an AG Stone IPA clone recipe that has been converted to an extract recipe. The recipe calls for 8#LME,1/2 lb of crystal malt 10L and 12 lb of crystal malt 20L. In the past I have steeped the grains from the kits for 30 min. The mash recipe on this says mash all grains for 60 min. Since I am using the extract recipe should I steep the crystal malts for 30 or 60 min?